Question: who played sara lance in arrow season 2
[{'answer': 'Caity Lotz', 'provenance': [{'wikipedia_id': '47849414', 'title': 'Arrow (season 2)', 'start_paragraph_id': 2, 'start_character': 519, 'end_paragraph_id': 2, 'end_character': 529, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]