Assertion: palm cockatoo | /r/Synonym | great black cockatoo
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Source sentences:
text: The palm cockatoo (Probosciger aterrimus), also known as the goliath cockatoo or great black cockatoo, is a large smoky-grey or black parrot of the cockatoo family native to New Guinea, Aru Islands, and Cape York Peninsula.
text: The black palm cockatoo, also known as the great black cockatoo or the goliath cockatoo is one of the biggest of the cockatoo species.