Question: where does the term shotgun wedding come from
[{'answer': 'American colloquialism', 'provenance': [{'wikipedia_id': '599052', 'title': 'Shotgun wedding', 'start_paragraph_id': 1, 'start_character': 206, 'end_paragraph_id': 1, 'end_character': 228, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '599052', 'title': 'Shotgun wedding', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 491, 'bleu_score': 0.8566534724564321, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5957279766541054173}, 'section': 'Section::::Abstract.'}]}]