@prefix rdf:	<http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix ns1:	<http://purl.obolibrary.org/obo/> .
@prefix owl:	<http://www.w3.org/2002/07/owl#> .
ns1:RO_0002543	rdf:type	owl:AnnotationProperty .
@prefix rdfs:	<http://www.w3.org/2000/01/rdf-schema#> .
ns1:RO_0002543	rdfs:subPropertyOf	ns1:RO_0002537 ;
	rdfs:label	"start, months post birth" ;
	ns1:IAO_0000115	"Count of number of months intervening between the start of the stage and the time of birth according to a reference model. Note that the first month of post-birth development has the value of 0 for this property, and the period during which the child is one month old has the value 1." .