Question: who bears the payment risk in a letter of credit
[{'answer': 'the bank', 'provenance': [{'wikipedia_id': '844265', 'title': 'Letter of credit', 'start_paragraph_id': 17, 'start_character': 768, 'end_paragraph_id': 17, 'end_character': 776, 'bleu_score': 1.0, 'section': 'Section::::Function.\n'}]}, {'provenance': [{'wikipedia_id': '844265', 'title': 'Letter of credit', 'start_paragraph_id': 18, 'start_character': 0, 'end_paragraph_id': 18, 'end_character': 661, 'bleu_score': 0.9828310228624961, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17196873611441283432}, 'section': 'Section::::Function.\n'}]}]