Question: how many episodes star trek discovery season one
[{'answer': '15', 'provenance': [{'wikipedia_id': '55358735', 'title': 'Star Trek: Discovery (season 1)', 'start_paragraph_id': 2, 'start_character': 236, 'end_paragraph_id': 2, 'end_character': 238, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '55358735', 'title': 'Star Trek: Discovery (season 1)', 'start_paragraph_id': 3, 'start_character': 4, 'end_paragraph_id': 3, 'end_character': 597, 'bleu_score': 0.63089249530654, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8570601197281853707}, 'section': 'Section::::Abstract.'}]}]