Question: who is the bomber in the westing game book
[{'answer': 'Angela Wexler', 'provenance': [{'wikipedia_id': '2661883', 'title': 'The Westing Game', 'start_paragraph_id': 8, 'start_character': 238, 'end_paragraph_id': 8, 'end_character': 251, 'bleu_score': 1.0, 'section': 'Section::::Characters.:Pair One.\n'}]}]