Assertion: octopus | /r/CapableOf | signal their feelings
Facets:
Source sentences:
text: If they are not blending in with their surroundings, they can signal their feelings using color.
text: If they are not blending in with their surroundings, they can signal their feelings using colour.
text: If they are not blending in with their surroundings, they can signal their feelings using color.