Question: how long is a human generation in years
[{'answer': 'from 22 to 32 years'}, {'provenance': [{'wikipedia_id': '9503180', 'title': 'Generation time', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 343, 'bleu_score': 0.915132941383415, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2369582321023061781}, 'section': 'Section::::Abstract.'}]}]