Question: Does Long John Silver's serve sea otter?, Answer:No, Description of Sea otter: A species of marine mammal from the northern and eastern coasts of the North Pacific Ocean, Fact1: Sea Otters are endangered marine mammals., Fact2: Long John Silver's is an american fast food chain that serves seafood., Fact3: Long John Silver's does not serve meat from mammals.
Step1: What classes of animals does Long John Silver's serve food from?, Step2: To which class of animals does the sea otter belong?, Step3: Is #2 listed in #1?, Wikipedia page for step 1: Long John Silver's, Wikipedia page for step 2: Sea Otter, Wikipedia page for step 3: , not_definitive_answer: False, incorrect_answer: False