Question: in damon and pythias why does damon offer to take pythias's place in prison
[{'answer': 'as a hostage', 'provenance': [{'wikipedia_id': '1116542', 'title': 'Damon and Pythias', 'start_paragraph_id': 4, 'start_character': 276, 'end_paragraph_id': 4, 'end_character': 288, 'bleu_score': 1.0, 'section': 'Section::::Greek legend.\n'}]}]