Question: What nationality is the author of who is best known for his children's book series that was first published in 1963 and helped establish Scholastic as a premier publishing company?
{'answer': 'American', 'supporting_facts': [['Norman Bridwell', 0], ['Clifford the Big Red Dog', 0], ['Clifford the Big Red Dog', 1], ['Clifford the Big Red Dog', 2]]}