Assertion: magpie's group | /r/CapableOf | use carolling
Facets:
value: as a signal
type: PURPOSE
Source sentences:
text: A group will use carolling as a signal to advertise ownership and warn off other magpies.
text: A group will use carolling as a signal to advertise ownership and warn off other magpies.
text: A group will use carolling as a signal to advertise ownership and warn off other magpies.