Assertion: walnut's seed | /r/HasProperty | moved by the wind or water currents
Facets:
value: by undergoing freezing
type: MANNER
Source sentences:
text: Under natural conditions, seed coats are worn down by rodents chewing on the seed, the seeds rubbing against rocks (seeds are moved by the wind or water currents), by undergoing freezing and thawing of surface water, or passing through an animal's digestive tract.