Question: which of the animal is a carrier of h1n1
[{'answer': 'pigs', 'provenance': [{'wikipedia_id': '1516915', 'title': 'Swine influenza', 'start_paragraph_id': 1, 'start_character': 231, 'end_paragraph_id': 1, 'end_character': 235, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1516915', 'title': 'Swine influenza', 'start_paragraph_id': 62, 'start_character': 0, 'end_paragraph_id': 62, 'end_character': 661, 'bleu_score': 0.9815648442794911, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13481444841451631613}, 'section': 'Section::::History.\n'}]}]