Question: who played the commander in the handmaid's tale
[{'answer': 'Joseph Fiennes', 'provenance': [{'wikipedia_id': '50430110', 'title': "The Handmaid's Tale (TV series)", 'start_paragraph_id': 12, 'start_character': 126, 'end_paragraph_id': 12, 'end_character': 140, 'bleu_score': 1.0, 'section': 'Section::::Plot.\n'}]}]