Assertion: cockatoo's cage | /r/HasProperty | required
Facets:
Source sentences:
text: Care and feeding: A roomy cage is required unless the bird is to be let out for extended periods.
text: Care and feeding: A roomy cage is required unless the bird is to be let out for extended periods.
text: Care and feeding: A roomy cage is required unless the bird is to be let out for extended periods.