Question: who was the first person to find gold in colorado
[{'answer': 'Lewis Ralston', 'provenance': [{'wikipedia_id': '11882269', 'title': 'Gold mining in Colorado', 'start_paragraph_id': 5, 'start_character': 166, 'end_paragraph_id': 5, 'end_character': 179, 'bleu_score': 1.0, 'section': 'Section::::Denver-area placers.\n'}]}, {'provenance': [{'wikipedia_id': '11882269', 'title': 'Gold mining in Colorado', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 948, 'bleu_score': 0.900708512178771, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12871480926261029366}, 'section': 'Section::::Denver-area placers.\n'}]}]