Question: who won season 4 of the amazing race
[{'answer': 'Reichen Lehmkuhl', 'provenance': [{'wikipedia_id': '898144', 'title': 'The Amazing Race 4', 'start_paragraph_id': 2, 'start_character': 20, 'end_paragraph_id': 2, 'end_character': 36, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Chip Arndt', 'provenance': [{'wikipedia_id': '898144', 'title': 'The Amazing Race 4', 'start_paragraph_id': 2, 'start_character': 41, 'end_paragraph_id': 2, 'end_character': 51, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '898144', 'title': 'The Amazing Race 4', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 132, 'bleu_score': 0.9181891462193901, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2301595257320939018}, 'section': 'Section::::Abstract.'}]}]