Assertion: dolphin's sound | /r/CapableOf | detect handy
Facets:
value: especially
type: MANNER
value: for two reasons
type: CAUSE
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.