Assertion: great blue heron | /r/CapableOf | get its name
Facets:
value: from the blue-gray coloring
type: CAUSE
Source sentences:
text: The great blue heron gets its name from the blue-gray coloring that covers its body and wings.
text: Great blue herons get their name from the grayish blue coloration of the feathers on their upper wings, back, and tail.