Question: who plays the voice of poppy in the movie trolls
[{'answer': 'Anna Kendrick', 'provenance': [{'wikipedia_id': '37935799', 'title': 'Trolls (film)', 'start_paragraph_id': 1, 'start_character': 297, 'end_paragraph_id': 1, 'end_character': 310, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Iris Dohrn', 'provenance': [{'wikipedia_id': '37935799', 'title': 'Trolls (film)', 'start_paragraph_id': 16, 'start_character': 12, 'end_paragraph_id': 16, 'end_character': 22, 'bleu_score': 1.0, 'section': 'Section::::Cast.\n'}]}]