Assertion: quail | /r/HasProperty | brilliant source of protein
Facets:
value: for their workers
type: TRANSITIVE-OBJECT
Source sentences:
text: The Egyptians soon realised that quail were a brilliant source of protein for their workers so established large farms for breeding them.
text: The Egyptians soon realised that quail were a brilliant source of protein for their workers so established large farms for breeding them.