Question: Do black swans take multiple partners?, Answer:No, Description of Black swan: species of bird, Fact1: Black swans partner with each other to rear young., Fact2: Black swans will only rear young with a single partner. 
Step1: How many partners do swans usually take?, Step2: Is #1 more than one?, Wikipedia page for step 1: Swan, Wikipedia page for step 2: , not_definitive_answer: False, incorrect_answer: False