Question: how many episodes are there in ghost whisperer
[{'answer': '107', 'provenance': [{'wikipedia_id': '3976772', 'title': 'List of Ghost Whisperer episodes', 'start_paragraph_id': 2, 'start_character': 20, 'end_paragraph_id': 2, 'end_character': 23, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '3976772', 'title': 'List of Ghost Whisperer episodes', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 77, 'bleu_score': 0.861173529963367, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5834631233284479543}, 'section': 'Section::::Abstract.'}]}]