Assertion: otter's whisker | /r/HasProperty | long
Facets:
Source sentences:
text: They have long whiskers that help them find food even in murky water.
text: River otters are expert swimmers and have long and sensitive needle-like whiskers, which help them to sense preys underwater.
text: Their whiskers are long and thick.
text: They have long whiskers and sensitive forepaws, with retractable claws, which help them to detect and capture prey underwater.