sentence: 플레전트, 헨리 (1969) "Serious Music and All That Jazz". Simon & Schuster.
subject_entity: {'word': 'Serious Music and All That Jazz', 'start_idx': 17, 'end_idx': 47, 'type': 'POH'}
object_entity: {'word': '1969', 'start_idx': 10, 'end_idx': 13, 'type': 'DAT'}