Assertion: blue whale's tongue | /r/CapableOf | weigh 4 tons
Facets:
Source sentences:
text: The tongue weighs 4 tons (3.8 tonnes).
text: Just to give you a better perspective, a large blue whale is about the same length as a Boeing 737 airplane, and its tongue alone weighs about 4 tons (about 8,000 pounds, or about the weight of an African elephant ).