Assertion: kookaburra's feather | /r/HasProperty | two slender lyrates
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Source sentences:
text: The lyrebird is so called because the male bird has a spectacular tail, consisting of 16 highly modified feathers (two long slender lyrates at the centre of the plume, two broader medians on the outside edges and twelve filamentaries arrayed between them), which was originally thought to resemble a lyre.