Question: what is the significance of april 27 1994 in south africa
[{'answer': 'first post-apartheid elections', 'provenance': [{'wikipedia_id': '1774301', 'title': 'Freedom Day (South Africa)', 'start_paragraph_id': 1, 'start_character': 115, 'end_paragraph_id': 1, 'end_character': 145, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1774301', 'title': 'Freedom Day (South Africa)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 542, 'bleu_score': 0.8758269385860701, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5446882670074438032}, 'section': 'Section::::Abstract.'}]}]