Assertion: platypus | /r/HasProperty | link
Facets:
value: between birds
type: TRANSITIVE-OBJECT
value: between mammals
type: OTHER
value: because of its "duckbill"
type: CAUSE
Source sentences:
text: No competent evolutionist has ever claimed that platypuses are a link between birds and mammals.
text: Huse may believe that the platypus is thought to be a link between mammals and birds because of its "duckbill".