Question: when did coors became available in the east
[{'answer': 'in the mid-1980s', 'provenance': [{'wikipedia_id': '179500', 'title': 'Coors Brewing Company', 'start_paragraph_id': 11, 'start_character': 656, 'end_paragraph_id': 11, 'end_character': 672, 'bleu_score': 1.0, 'section': 'Section::::History.:Products.\n'}]}, {'provenance': [{'wikipedia_id': '179500', 'title': 'Coors Brewing Company', 'start_paragraph_id': 11, 'start_character': 0, 'end_paragraph_id': 11, 'end_character': 671, 'bleu_score': 0.830304739521578, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9409483960653691119}, 'section': 'Section::::History.:Products.\n'}]}]