Assertion: mound | /r/MadeOf | mussel
Facets:
value: mostly
type: DEGREE
value: with a plentiful mixture of cockleshells
type: OTHER
Source sentences:
text: When the University of California excavated this site in 1902, and again in the 1920s, they found that the mound consisted mostly of clam, mussel, and oyster (predominantly Olympia Oyster) shells, with a plentiful mixture of cockleshells.