Assertion: bullfrog's hind leg | /r/HasProperty | strong
Facets:
Source sentences:
text: African bullfrogs are known as burrowing frogs because they use their strong hind legs to dig holes in the ground.
text: Its front feet have short blunt toes, with no webbing, while its hind legs are strong and are used to dig holes where it hides itself.
text: African bullfrogs are known as burrowing frogs because they use their strong hind legs to dig holes in the ground.