Question: who plays the clown in it 2017 cast
[{'answer': 'Bill Skarsgård', 'provenance': [{'wikipedia_id': '50287849', 'title': 'It (2017 film)', 'start_paragraph_id': 2, 'start_character': 148, 'end_paragraph_id': 2, 'end_character': 162, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '50287849', 'title': 'It (2017 film)', 'start_paragraph_id': 2, 'start_character': 101, 'end_paragraph_id': 2, 'end_character': 565, 'bleu_score': 0.5124730937275851, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12587096366213271409}, 'section': 'Section::::Abstract.'}]}]