Assertion: halibut's side | /r/CapableOf | darken to match top side
Facets:
value: at the same time
type: TEMPORAL
Source sentences:
text: At the same time, the stationary-eyed side darkens to match the top side, while the other side remains white.
text: At the same time, the stationary-eyed side darkens to match the top side, while the other side remains white.