Assertion: elephant | /r/CapableOf | relax muscle
Facets:
value: in "voice box"
type: LOCATION
value: in their larynx
type: LOCATION
value: for each pulse of sound
type: PURPOSE
Source sentences:
text: One possibility, favored by some scientists, is that the elephants tense and relax the muscles in their larynx (or "voice box") for each pulse of sound.