Assertion: water snake | /r/CapableOf | pull upper body
Facets:
value: into an s-shape
type: OTHER
Source sentences:
text: Water snakes almost always flee quickly into the water when threatened, while cottonmouths often will stand their ground and perform their threat display, which includes vibrating its tail and throwing its head back with its mouth opened to show the startling white interior, hissing and pulling the upper body into an S-shape.