Assertion: macaw | /r/CapableOf | apply their saliva
Facets:
value: to nest
type: PURPOSE
value: to the sandstone
type: TRANSITIVE-OBJECT
Source sentences:
text: To nest there, they apply their saliva to the sandstone which softens it, then excavate small crevasses using their beaks and scrape the dust out of their soon-to-be nests with their feet.