Assertion: migration | /r/HasProperty | the mechanism
Facets:
value: behind the seasonal appearance
type: OTHER
value: in everyday speech
type: OTHER
Source sentences:
text: In everyday speech, migration is regarded as the mechanism behind the seasonal appearance and disappearance of some species of birds, mammals, fish and insects.
text: In everyday speech, migration is regarded as the mechanism behind the seasonal appearance and disappearance of some species of birds, mammals, fish and insects.