Assertion: tiger shark's teeth | /r/HasAspect | needle-like teeth
Facets:
value: for gripping
type: PURPOSE
Source sentences:
text: The shape of a sharks tooth depends on its diet: those that feed on mollusks and crustaceans have dense flattened teeth for crushing, those that feed on fish have needle-like teeth for gripping, and those that feed on larger prey such as mammals have pointed lower teeth for gripping and triangular upper teeth with serrated edges for cutting.