Assertion: moorhen's head | /r/CapableOf | swim in swanlike attitude
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Source sentences:
text: Courtship: I have seen the courtship display in Florida, in which the white undertail coverts perform a conspicuous part; with head hold low, wings partly raised and opened and tail greatly elevated and spread, like a great white fan, the male swims about in a swanlike attitude, uttering his love notes.