Question: where is the tv show the arrow filmed
[{'answer': 'Vancouver , British Columbia', 'provenance': [{'wikipedia_id': '35793706', 'title': 'Arrow (TV series)', 'start_paragraph_id': 1, 'start_character': 474, 'end_paragraph_id': 1, 'end_character': 502, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '35793706', 'title': 'Arrow (TV series)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 670, 'bleu_score': 0.561999307821846, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 288310459660030194}, 'section': 'Section::::Abstract.'}]}]