Question: who is ben in gossip girl season 4
[{'answer': 'David Call', 'provenance': [{'wikipedia_id': '27329367', 'title': 'Gossip Girl (season 4)', 'start_paragraph_id': 60, 'start_character': 187, 'end_paragraph_id': 60, 'end_character': 197, 'bleu_score': 1.0, 'section': 'Section::::Production.:Cast.\n'}]}, {'provenance': [{'wikipedia_id': '27329367', 'title': 'Gossip Girl (season 4)', 'start_paragraph_id': 21, 'start_character': 0, 'end_paragraph_id': 21, 'end_character': 37, 'bleu_score': 0.6147881529512641, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11307415523625342078}, 'section': 'Section::::Cast and characters.:Recurring cast.\n'}]}]