{
  "retrieval_date": "2026-09-20",
  "queries": [
    {
      "ontology": "hsapdv",
      "query": "Carnegie stage 12",
      "url": "https://www.ebi.ac.uk/ols4/api/search?q=Carnegie+stage+12&ontology=hsapdv&rows=8&queryFields=label%2Csynonym&local=true",
      "numFound": 1,
      "results": [
        {
          "obo_id": "HsapDv:0000019",
          "label": "Carnegie stage 12",
          "iri": "http://purl.obolibrary.org/obo/HsapDv_0000019",
          "is_obsolete": null
        }
      ]
    },
    {
      "ontology": "uberon",
      "query": "developmental stage",
      "url": "https://www.ebi.ac.uk/ols4/api/search?q=developmental+stage&ontology=uberon&rows=8&queryFields=label%2Csynonym&local=true",
      "numFound": 1,
      "results": [
        {
          "obo_id": "UBERON:0000105",
          "label": "life cycle stage",
          "iri": "http://purl.obolibrary.org/obo/UBERON_0000105",
          "is_obsolete": null
        }
      ]
    },
    {
      "ontology": "go",
      "query": "S phase",
      "url": "https://www.ebi.ac.uk/ols4/api/search?q=S+phase&ontology=go&rows=8&queryFields=label%2Csynonym&local=true",
      "numFound": 109,
      "results": [
        {
          "obo_id": "GO:0051320",
          "label": "S phase",
          "iri": "http://purl.obolibrary.org/obo/GO_0051320",
          "is_obsolete": null
        },
        {
          "obo_id": "GO:1902576",
          "label": "negative regulation of nuclear cell cycle DNA replication",
          "iri": "http://purl.obolibrary.org/obo/GO_1902576",
          "is_obsolete": null
        },
        {
          "obo_id": "GO:1903464",
          "label": "negative regulation of mitotic cell cycle DNA replication",
          "iri": "http://purl.obolibrary.org/obo/GO_1903464",
          "is_obsolete": null
        },
        {
          "obo_id": "GO:1903465",
          "label": "positive regulation of mitotic cell cycle DNA replication",
          "iri": "http://purl.obolibrary.org/obo/GO_1903465",
          "is_obsolete": null
        },
        {
          "obo_id": "GO:1904860",
          "label": "DNA synthesis involved in mitotic DNA replication",
          "iri": "http://purl.obolibrary.org/obo/GO_1904860",
          "is_obsolete": null
        },
        {
          "obo_id": "GO:0047454",
          "label": "phaseollidin hydratase activity",
          "iri": "http://purl.obolibrary.org/obo/GO_0047454",
          "is_obsolete": null
        },
        {
          "obo_id": "GO:0051332",
          "label": "meiotic S phase",
          "iri": "http://purl.obolibrary.org/obo/GO_0051332",
          "is_obsolete": null
        },
        {
          "obo_id": "GO:0000087",
          "label": "mitotic M phase",
          "iri": "http://purl.obolibrary.org/obo/GO_0000087",
          "is_obsolete": null
        }
      ]
    }
  ],
  "terms": [
    {
      "id": "HsapDv:0000019",
      "label": "Carnegie stage 12",
      "is_obsolete": false,
      "description": [
        "Usually starts between day 26 and day 30 post-fertilization.",
        "Organogenesis stage during which somites 21-29 appear, and the caudal neuropore closes."
      ],
      "url": "https://www.ebi.ac.uk/ols4/api/ontologies/hsapdv/terms?obo_id=HsapDv%3A0000019",
      "ancestors_url": "http://www.ebi.ac.uk/ols4/api/ontologies/hsapdv/terms/http%253A%252F%252Fpurl.obolibrary.org%252Fobo%252FHsapDv_0000019/ancestors?size=500",
      "is_a_ancestors": [
        {
          "id": "HsapDv:0000000",
          "label": "life cycle stage"
        }
      ],
      "annotation": {
        "database_cross_reference": [
          "EHDAA2:CS12",
          "FMA:295916",
          "XUO:0000141"
        ],
        "has stage marker": [
          "http://purl.obolibrary.org/obo/EHDAA2_0001869",
          "http://purl.obolibrary.org/obo/EHDAA2_0001870",
          "http://purl.obolibrary.org/obo/EHDAA2_0001871",
          "http://purl.obolibrary.org/obo/EHDAA2_0001872",
          "http://purl.obolibrary.org/obo/EHDAA2_0001873",
          "http://purl.obolibrary.org/obo/EHDAA2_0001874",
          "http://purl.obolibrary.org/obo/EHDAA2_0001875",
          "http://purl.obolibrary.org/obo/EHDAA2_0001876",
          "http://purl.obolibrary.org/obo/EHDAA2_0001877",
          "http://purl.obolibrary.org/obo/GO_0021507"
        ],
        "has_obo_namespace": [
          "human_developmental_stage"
        ],
        "id": [
          "HsapDv:0000019"
        ],
        "start, days post fertilization": [
          "26.0"
        ]
      }
    },
    {
      "id": "UBERON:0000105",
      "label": "life cycle stage",
      "is_obsolete": false,
      "description": [
        "A spatiotemporal region encompassing some part of the life cycle of an organism."
      ],
      "url": "https://www.ebi.ac.uk/ols4/api/ontologies/uberon/terms?obo_id=UBERON%3A0000105",
      "ancestors_url": "http://www.ebi.ac.uk/ols4/api/ontologies/uberon/terms/http%253A%252F%252Fpurl.obolibrary.org%252Fobo%252FUBERON_0000105/ancestors?size=500",
      "is_a_ancestors": [
        {
          "id": "BFO:0000001",
          "label": "entity"
        },
        {
          "id": "BFO:0000003",
          "label": "occurrent"
        },
        {
          "id": "BFO:0000015",
          "label": "process"
        }
      ],
      "annotation": {
        "database_cross_reference": [
          "BILS:0000105",
          "EFO:0000399",
          "FBdv:00007012",
          "FMA:24120",
          "MESH:D008018",
          "PdumDv:0000090",
          "WBls:0000002",
          "XAO:1000000",
          "ZFS:0000000",
          "ZFS:0100000",
          "ncithesaurus:Developmental_Stage",
          "AcarDv:0000000",
          "BtauDv:0000000",
          "CfamDv:0000000",
          "ChirDv:0000000",
          "CporDv:0000000",
          "DpseDv:0000000",
          "DsimDv:0000000",
          "EcabDv:0000000",
          "FcatDv:0000000",
          "GgalDv:0000000",
          "GgorDv:0000000",
          "HsapDv:0000000",
          "MdomDv:0000000",
          "MmulDv:0000000",
          "MmusDv:0000000",
          "OanaDv:0000000",
          "OariDv:0000000",
          "OcunDv:0000000",
          "PpanDv:0000000",
          "PtroDv:0000000",
          "RnorDv:0000000",
          "SsalDv:0000000",
          "SscrDv:0000000"
        ],
        "editor note": [
          "this class represents a proper part of the life cycle of an organism. The class 'life cycle' should not be placed here"
        ],
        "external_ontology_notes": [
          "the WBls class 'all stages' belongs here as it is the superclass of other WBls stages",
          "we map the ZFS unknown stage here as it is logically equivalent to saying *some* life cycle stage"
        ],
        "id": [
          "UBERON:0000105"
        ],
        "present in taxon": [
          "http://purl.obolibrary.org/obo/NCBITaxon_33090",
          "http://purl.obolibrary.org/obo/NCBITaxon_33208",
          "http://purl.obolibrary.org/obo/NCBITaxon_4751"
        ]
      }
    },
    {
      "id": "GO:0051320",
      "label": "S phase",
      "is_obsolete": false,
      "description": [
        "Note that this term should not be used for direct annotation. If you are trying to make an annotation to x phase, it is likely that the correct annotation is 'regulation of x/y phase transition' or to a process which occurs during the reported phase (i.e mitotic DNA replication for mitotic S-phase). To capture the phase when a specific location or process is observed, the phase term can be used in an annotation extension (PMID:24885854) applied to a cellular component term (with the relation exists_during) or a biological process term (with the relation happens_during).",
        "The cell cycle phase, following G1, during which DNA synthesis takes place."
      ],
      "url": "https://www.ebi.ac.uk/ols4/api/ontologies/go/terms?obo_id=GO%3A0051320",
      "ancestors_url": "http://www.ebi.ac.uk/ols4/api/ontologies/go/terms/http%253A%252F%252Fpurl.obolibrary.org%252Fobo%252FGO_0051320/ancestors?size=500",
      "is_a_ancestors": [
        {
          "id": "BFO:0000003",
          "label": "occurrent"
        },
        {
          "id": "BFO:0000015",
          "label": "process"
        },
        {
          "id": "GO:0008150",
          "label": "biological_process"
        },
        {
          "id": "GO:0022403",
          "label": "cell cycle phase"
        },
        {
          "id": "GO:0044848",
          "label": "biological phase"
        }
      ],
      "annotation": {
        "database_cross_reference": [
          "Wikipedia:S_phase"
        ],
        "has_obo_namespace": [
          "biological_process"
        ],
        "id": [
          "GO:0051320"
        ]
      }
    },
    {
      "id": "GO:0000084",
      "label": "mitotic S phase",
      "is_obsolete": false,
      "description": [
        "Note that this term should not be used for direct annotation. If you are trying to make an annotation to x phase, it is likely that the correct annotation is 'regulation of x/y phase transition' or to a process which occurs during the reported phase (i.e mitotic DNA replication for mitotic S-phase). To capture the phase when a specific location or process is observed, the phase term can be used in an annotation extension (PMID:24885854) applied to a cellular component term (with the relation exists_during) or a biological process term (with the relation happens_during).",
        "The cell cycle phase, following G1, during which DNA synthesis takes place as part of a mitotic cell cycle."
      ],
      "url": "https://www.ebi.ac.uk/ols4/api/ontologies/go/terms?obo_id=GO%3A0000084",
      "ancestors_url": "http://www.ebi.ac.uk/ols4/api/ontologies/go/terms/http%253A%252F%252Fpurl.obolibrary.org%252Fobo%252FGO_0000084/ancestors?size=500",
      "is_a_ancestors": [
        {
          "id": "BFO:0000003",
          "label": "occurrent"
        },
        {
          "id": "BFO:0000015",
          "label": "process"
        },
        {
          "id": "GO:0008150",
          "label": "biological_process"
        },
        {
          "id": "GO:0022403",
          "label": "cell cycle phase"
        },
        {
          "id": "GO:0044848",
          "label": "biological phase"
        },
        {
          "id": "GO:0051320",
          "label": "S phase"
        }
      ],
      "annotation": {
        "has_obo_namespace": [
          "biological_process"
        ],
        "id": [
          "GO:0000084"
        ]
      }
    },
    {
      "id": "GO:0021507",
      "label": "posterior neuropore closure",
      "is_obsolete": false,
      "description": [
        "The joining together of the neural folds of the caudal opening of the neural tube. The posterior neuropore appears before the process of neural tube closure is complete."
      ],
      "url": "https://www.ebi.ac.uk/ols4/api/ontologies/go/terms?obo_id=GO%3A0021507"
    }
  ],
  "scope": "Live ontology lookup only. The proposed happens_during field was not implemented or validated as production schema."
}