Assertion: american alligator's tail | /r/HasProperty | swiman et al
Facets:
Source sentences:
text: Although the American alligator has short legs, these animals have the ability to run 7.5 to 9 mph for short distances, and can swim up to 10 mph, perhaps more, with the propulsion manifested from their muscular, flat tails (Swiman et al. 2009).