Question: who played superman in the tv series smallville
[{'answer': 'Tom Welling', 'provenance': [{'wikipedia_id': '843612', 'title': 'Smallville', 'start_paragraph_id': 1, 'start_character': 469, 'end_paragraph_id': 1, 'end_character': 480, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '843612', 'title': 'Smallville', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 811, 'bleu_score': 0.9577362712813341, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4172259625976223148}, 'section': 'Section::::Abstract.'}]}]