Assertion: river dolphin's body | /r/HasProperty | murky
Facets:
value: far
type: DEGREE
value: for sight
type: PURPOSE
value: often
type: DEGREE
Source sentences:
text: It involves using and interpreting sounds to detect something's location underwater and is especially handy for two reasons: Bodies of water are often far too murky for sight, and sound actually travels quickly underwater, much faster than it does in air.