Question: when is season 3 of star vs the forces of evil come out
[{'answer': 'July 15 , 2017', 'provenance': [{'wikipedia_id': '50782483', 'title': 'List of Star vs. the Forces of Evil episodes', 'start_paragraph_id': 3, 'start_character': 152, 'end_paragraph_id': 3, 'end_character': 166, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]