Assertion: snail's mucus | /r/CapableOf | reduce friction
Facets:
value: on the surface
type: LOCATION
value: with the underneath surface
type: OTHER
Source sentences:
text: The foot contracts to produce movement and glands within it release a mucus that reduces friction with the underneath surface, reducing risks of damaging their skin.
text: The foot has a wave-shaped movement produced by muscular contractions that make the snail “glide” while the foot secretes a slippery mucus that reduces the friction on the surface in which it moves.
text: The mucus cuts down on the amount of friction that the ground causes for the snail, reducing contact to the point that a snail can crawl along the edge of a knife and not suffer from any cuts.
text: The mucus reduces friction but also produces a suction that helps them cling to things, even upside down.