Question: who created the borders of africa's countries
[{'answer': 'European imperial powers', 'provenance': [{'wikipedia_id': '5334607', 'title': 'Africa', 'start_paragraph_id': 44, 'start_character': 30, 'end_paragraph_id': 44, 'end_character': 54, 'bleu_score': 1.0, 'section': 'Section::::History.:Colonialism and the "Scramble for Africa".\n'}]}, {'provenance': [{'wikipedia_id': '5334607', 'title': 'Africa', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 0, 'bleu_score': 1.0, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 542150667055183432}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '5334607', 'title': 'Africa', 'start_paragraph_id': 44, 'start_character': 0, 'end_paragraph_id': 44, 'end_character': 465, 'bleu_score': 0.970362113628587, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 542150667055183432}, 'section': 'Section::::History.:Colonialism and the "Scramble for Africa".\n'}]}, {'provenance': [{'wikipedia_id': '5334607', 'title': 'Africa', 'section': 'Section::::History.:Colonialism and the "Scramble for Africa".\n', 'start_paragraph_id': 44, 'end_paragraph_id': 44, 'meta': {'evidence_span': ['In the late 19th century, the European imperial powers engaged in a major territorial scramble and occupied most of the continent, creating many colonial territories, and leaving only two fully independent states', 'In the late 19th century, the European imperial powers engaged in a major territorial scramble and occupied most of the continent, creating many colonial territories, and leaving only two fully independent states: Ethiopia (known to Europeans as "Abyssinia"), and Liberia.', 'In the late 19th century, the European imperial powers engaged in a major territorial scramble and occupied most of the continent, creating many colonial territories, and leaving only two fully independent states: Ethiopia (known to Europeans as "Abyssinia"), and Liberia. Egypt and Sudan were never formally incorporated into any European colonial empire; however, after the British occupation of 1882, Egypt was effectively under British administration until 1922.']}}]}]