Question: when does bill show up in gravity falls
[{'answer': "`` Dreamscaperers ''"}, {'provenance': [{'wikipedia_id': '40362674', 'title': 'Dreamscaperers', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 428, 'bleu_score': 0.972782728923768, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7959043911490151688}, 'section': 'Section::::Abstract.'}]}]