Question: how many episodes in season 7 of west wing
[{'answer': '22', 'provenance': [{'wikipedia_id': '28014096', 'title': 'The West Wing (season 7)', 'start_paragraph_id': 1, 'start_character': 186, 'end_paragraph_id': 1, 'end_character': 188, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '28014096', 'title': 'The West Wing (season 7)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 362, 'bleu_score': 0.8005001070132811, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 18263404558792578187}, 'section': 'Section::::Abstract.'}]}]