Question: Nicola Dickson "Niki" Sauvage Tsongas is an American politician whose husband lost the 1992 Democratic presidential primary to who?
{'answer': 'Bill Clinton', 'supporting_facts': [['Niki Tsongas', 0], ['Niki Tsongas', 1], ['Paul Tsongas', 0], ['Paul Tsongas', 2]]}