Question: what was the major development of the neolithic age
[{'answer': 'farming', 'provenance': [{'wikipedia_id': '21189', 'title': 'Neolithic', 'start_paragraph_id': 1, 'start_character': 150, 'end_paragraph_id': 1, 'end_character': 157, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '21189', 'title': 'Neolithic', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 424, 'bleu_score': 0.56873958937938, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1189784073211280458}, 'section': 'Section::::Abstract.'}]}]