Assertion: giraffe's sound | /r/HasProperty | impossible
Facets:
Source sentences:
text: These animals often snort and hiss, but can also make very low sounds which are impossible for humans to hear.
text: These animals often snort and hiss, but can also make very low sounds which are impossible for humans to hear.
text: These animals often snort and hiss, but can also make very low sounds which are impossible for humans to hear.
text: It was previously believed that giraffes may make sounds that are impossible for humans to hear, similar to elephants, but the new research suggests otherwise.