Question: how many countries are members of world health organization
[{'answer': '194', 'provenance': [{'wikipedia_id': '33583', 'title': 'World Health Organization', 'start_paragraph_id': 1, 'start_character': 164, 'end_paragraph_id': 1, 'end_character': 167, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '33583', 'title': 'World Health Organization', 'start_paragraph_id': 90, 'start_character': 0, 'end_paragraph_id': 90, 'end_character': 629, 'bleu_score': 0.878294774732393, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9828291491980328806}, 'section': 'Section::::Structure.:Membership.\n'}]}]