Question: which technologically advanced civilization had made important advances in navigation by the 1300s
[{'answer': 'Medieval technology', 'provenance': [{'wikipedia_id': '1390149', 'title': 'Medieval technology', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 19, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1390149', 'title': 'Medieval technology', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 583, 'bleu_score': 0.9369287546014021, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5534491205552145540}, 'section': 'Section::::Abstract.'}]}]