Question: when was mcdonald's sued for hot coffee
[{'answer': '1994', 'provenance': [{'wikipedia_id': '200614', 'title': "Liebeck v. McDonald's Restaurants", 'start_paragraph_id': 1, 'start_character': 110, 'end_paragraph_id': 1, 'end_character': 114, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '200614', 'title': "Liebeck v. McDonald's Restaurants", 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 641, 'bleu_score': 0.948176576261152, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 883398196667046269}, 'section': 'Section::::Abstract.'}]}]