Question: where is the salivary gland located in humans
[{'answer': 'the mouth', 'provenance': [{'wikipedia_id': '207336', 'title': 'Salivary gland', 'start_paragraph_id': 13, 'start_character': 249, 'end_paragraph_id': 13, 'end_character': 258, 'bleu_score': 1.0, 'section': 'Section::::Structure.:Minor salivary glands.\n'}]}, {'provenance': [{'wikipedia_id': '207336', 'title': 'Salivary gland', 'start_paragraph_id': 27, 'start_character': 0, 'end_paragraph_id': 27, 'end_character': 291, 'bleu_score': 0.958740481558872, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8655312546333834535}, 'section': 'Section::::Structure.:Microanatomy.:Ducts.\n'}]}]