Question: where did the name bobby pin come from
[{'answer': 'after the bobbed hairstyle', 'provenance': [{'wikipedia_id': '1799977', 'title': 'Bobby pin', 'start_paragraph_id': 20, 'start_character': 335, 'end_paragraph_id': 20, 'end_character': 361, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '1799977', 'title': 'Bobby pin', 'start_paragraph_id': 20, 'start_character': 0, 'end_paragraph_id': 20, 'end_character': 776, 'bleu_score': 0.839219187745692, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 18236190778174995363}, 'section': 'Section::::History.\n'}]}]