Question: the island of arguim was used by the portuguese as a
[{'answer': 'trading post', 'provenance': [{'wikipedia_id': '1507351', 'title': 'Arguin', 'start_paragraph_id': 3, 'start_character': 196, 'end_paragraph_id': 3, 'end_character': 208, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '1507351', 'title': 'Arguin', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 342, 'bleu_score': 0.9657992495762461, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17297357858251684213}, 'section': 'Section::::History.\n'}]}]