Question: Is Thanksgiving sometimes considered a day of mourning?, Answer:Yes, Description of Thanksgiving (United States): holiday celebrated in the United States on the fourth Thursday in November, Fact1: The Native American People in the United States were brutalized during the colonization period., Fact2: Native Americans in the US often choose to mourn the genocide of their people on Thanksgiving.
Step1: When do Native Americans often choose to mourn the genocide of their people?, Step2: Is Thanksgiving included in #1?, Wikipedia page for step 1: Native Americans, Wikipedia page for step 2: Thanksgiving, not_definitive_answer: False, incorrect_answer: False