Assertion: rattlesnake's body | /r/CapableOf | use a flow of muscle contractions
Facets:
value: along the sides
type: LOCATION
Source sentences:
text: The third method is called “caterpillar” or “rectilinear” locomotion, because the body moves in a straight line, using a flow of muscle contractions along the sides that looks like a caterpillar in motion.