Question: what is the name of a group of llamas
[{'answer': 'herd', 'provenance': [{'wikipedia_id': '18071', 'title': 'Llama', 'start_paragraph_id': 3, 'start_character': 61, 'end_paragraph_id': 3, 'end_character': 65, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '18071', 'title': 'Llama', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 298, 'bleu_score': 0.9213230164807431, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 18439999941886860577}, 'section': 'Section::::Abstract.'}]}]