Assertion: bat | /r/CapableOf | use sound
Facets:
value: to find its prey
type: PURPOSE
value: below the human auditory range
type: OTHER
value: to determine the object
type: PURPOSE
value: to avoid obstacles
type: PURPOSE
Source sentences:
text: In 1912, the inventor Hiram Maxim independently proposed that bats used sound below the human auditory range to avoid obstacles.
text: The bats then use the echoes to determine the object
text: However, when they use sounds for echolocation to "see," they use sounds people can't hear.
text: When it bounces back like an echo, the bat then uses that echo to find its prey.
text: However, when they use sounds for echolocation to "see," they use sounds people can't hear.