Assertion: hummingbird's foot | /r/HasProperty | weak
Facets:
value: very
type: DEGREE
Source sentences:
text: Hummingbirds have weak feet – they mainly use them just for perching.
text: Hummingbirds have very weak feet and can barely walk.
text: Hummingbirds have very weak feet and can barely walk.
text: During this time, the hummingbirds cling to a branch and sit almost lifeless; sometimes their feet (which are known to be quite weak) will loosen their grasp enough to swing downwards and hummingbirds remain hanging upside down on the branch until the next morning or until they become alert when approached.