Assertion: whelk's shell | /r/HasProperty | midden
Facets:
Source sentences:
text: One type of site that some archaeologists love to investigate is the shell midden or kitchen midden.
text: A shell midden is a heap of clam, oyster, whelk, or mussel shells, obviously, but unlike other types of sites, it is the result of a clearly recognizable single-activity event.
text: Other kinds of sites, such as campsites, villages, farmsteads, and rock shelters, have their attractions, but a shell midden was created by and large for one purpose: dinner.