Question: What country group, forned in Dallas, Texas, 1990, has a nationionally recognized fiddle player as a founding member?
{'answer': 'Dixie Chicks', 'supporting_facts': [['Dixie Chicks', 0], ['Dixie Chicks', 2], ['Dixie Chicks', 3], ['Martie Maguire', 0], ['Martie Maguire', 1]]}