Question: an element which is soft and reactive metal
[{'answer': 'alkali metals', 'provenance': [{'wikipedia_id': '666', 'title': 'Alkali metal', 'start_paragraph_id': 1, 'start_character': 4, 'end_paragraph_id': 1, 'end_character': 17, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '666', 'title': 'Alkali metal', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 1004, 'bleu_score': 0.988200073497952, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16136506251865715720}, 'section': 'Section::::Abstract.'}]}]