{ "items" : [
    { "id" : "http://purl.obolibrary.org/obo/RO_0002541"
      "properties" : {
        "http://www.w3.org/1999/02/22-rdf-syntax-ns#type" : [ "http://www.w3.org/2002/07/owl#AnnotationProperty" ] ,
        "http://www.w3.org/2000/01/rdf-schema#subPropertyOf" : [ "http://purl.obolibrary.org/obo/RO_0002537" ] ,
        "http://www.w3.org/2000/01/rdf-schema#label" : [ "start, years post birth" ] ,
        "http://purl.obolibrary.org/obo/IAO_0000115" : [ "Count of number of years intervening between the start of the stage and the time of birth according to a reference model. Note that the first year of post-birth development has the value of 0 for this property, and the period during which the child is one year old has the value 1."] } } }
