Question: where does the term stiff upper lip come from
[{'answer': 'Ancient Greece', 'provenance': [{'wikipedia_id': '1297132', 'title': 'Stiff upper lip', 'start_paragraph_id': 5, 'start_character': 51, 'end_paragraph_id': 5, 'end_character': 65, 'bleu_score': 1.0, 'section': 'Section::::Origins.\n'}]}, {'provenance': [{'wikipedia_id': '1297132', 'title': 'Stiff upper lip', 'start_paragraph_id': 5, 'start_character': 13, 'end_paragraph_id': 5, 'end_character': 1164, 'bleu_score': 0.931233350760276, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1774007496406124836}, 'section': 'Section::::Origins.\n'}]}]