Question: in what episode of criminal minds does jj come back
[{'answer': 'The season seven premiere', 'provenance': [{'wikipedia_id': '7825461', 'title': 'Jennifer Jareau', 'start_paragraph_id': 12, 'start_character': 0, 'end_paragraph_id': 12, 'end_character': 25, 'bleu_score': 1.0, 'section': 'Section::::Storylines.:Return to the BAU.\n'}]}, {'provenance': [{'wikipedia_id': '7825461', 'title': 'Jennifer Jareau', 'start_paragraph_id': 12, 'start_character': 0, 'end_paragraph_id': 12, 'end_character': 235, 'bleu_score': 0.9493253852526031, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7999427805049429611}, 'section': 'Section::::Storylines.:Return to the BAU.\n'}]}]