Question: who has the highest h index in the world
[{'answer': 'space science', 'provenance': [{'wikipedia_id': '3604693', 'title': 'H-index', 'start_paragraph_id': 26, 'start_character': 199, 'end_paragraph_id': 26, 'end_character': 212, 'bleu_score': 1.0, 'section': 'Section::::Comparing results across fields and career levels.\n'}]}, {'provenance': [{'wikipedia_id': '3604693', 'title': 'H-index', 'start_paragraph_id': 26, 'start_character': 0, 'end_paragraph_id': 26, 'end_character': 865, 'bleu_score': 0.9634320912002211, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1479550783367280019}, 'section': 'Section::::Comparing results across fields and career levels.\n'}]}]