Assertion: estrus | /r/CapableOf | start to 12 months of age
Facets:
value: for a labrador retriever
type: OTHER
value: between 9months
type: TEMPORAL
Source sentences:
text: Hence for a Labrador retriever, its first heat may start between 9months to 12 months of age.
text: For a breed like Labrador retriever, its first heat may start between 9months to 12 months of age.