Question: where was the first microwave oven placed for testing
[{'answer': 'a Boston restaurant', 'provenance': [{'wikipedia_id': '58017', 'title': 'Microwave oven', 'start_paragraph_id': 14, 'start_character': 954, 'end_paragraph_id': 14, 'end_character': 973, 'bleu_score': 1.0, 'section': 'Section::::History.:Discovery.\n'}]}, {'provenance': [{'wikipedia_id': '58017', 'title': 'Microwave oven', 'start_paragraph_id': 14, 'start_character': 754, 'end_paragraph_id': 14, 'end_character': 985, 'bleu_score': 0.948006874591591, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6187999043636176117}, 'section': 'Section::::History.:Discovery.\n'}]}]