Question: which are the salivary glands that are located anterior to the ears
[{'answer': 'parotid glands', 'provenance': [{'wikipedia_id': '331749', 'title': 'Parotid gland', 'start_paragraph_id': 1, 'start_character': 80, 'end_paragraph_id': 1, 'end_character': 94, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '331749', 'title': 'Parotid gland', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 407, 'bleu_score': 0.9716239638199891, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10795446863276697596}, 'section': 'Section::::Abstract.'}]}]