Question: Where is the chain of bookstores located that claims to be the largest independent new and used bookstore in the world and has #1 best-selling small press title of 2013, 2014, and 2015 "The Do-It-Yourself Guide to Fighting the Big Motherf*ckin' Sad"?
{'answer': 'Portland, Oregon', 'supporting_facts': [['Pioneers Press', 1], ["Powell's Books", 0]]}