Assertion: mother crab | /r/CapableOf | manipulate water quality
Facets:
value: by carrying empty snail shells
type: MANNER
value: by removing debris
type: MANNER
value: by circulating the water
type: MANNER
Source sentences:
text: The mother crab manipulates water quality by removing debris, by circulating the water to add oxygen to it, and by carrying empty snail shells into the water to buffer the pH levels and add calcium.