Assertion: sand dollar | /r/CapableOf | hold their ground
Facets:
value: by lying flat
type: MANNER
Source sentences:
text: But when the water gets rough, they lie flat or burrow under the sand to hold their ground.
text: When waters are rough, sand dollars hold their ground by lying flat—or burrowing under.
text: When waters are rough, sand dollars hold their ground by lying flat—or burrowing under.