Question: the practice of marrying only one person and getting married only once during a lifetime is called
[{'answer': 'Monogamy', 'provenance': [{'wikipedia_id': '5673804', 'title': 'Types of marriages', 'start_paragraph_id': 25, 'start_character': 11, 'end_paragraph_id': 25, 'end_character': 19, 'bleu_score': 1.0, 'section': 'Section::::Asia and Africa.\n'}]}]