Question: first person to climb north face of eiger
[{'answer': 'Charles Barrington', 'provenance': [{'wikipedia_id': '400251', 'title': 'Eiger', 'start_paragraph_id': 2, 'start_character': 88, 'end_paragraph_id': 2, 'end_character': 106, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '400251', 'title': 'Eiger', 'start_paragraph_id': 28, 'start_character': 0, 'end_paragraph_id': 28, 'end_character': 798, 'bleu_score': 0.961575397471609, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15362342170604515534}, 'section': 'Section::::Climbing history.:First ascent.\n'}]}]