Question: who does kevin hart voice in the secret life of pets
[{'answer': 'Snowball', 'provenance': [{'wikipedia_id': '45111773', 'title': 'The Secret Life of Pets', 'start_paragraph_id': 6, 'start_character': 49, 'end_paragraph_id': 6, 'end_character': 57, 'bleu_score': 1.0, 'section': 'Section::::Plot.\n'}]}]