Question: who failed in his attempt to start an english colony off the coast of north carolina
[{'answer': 'Sir Walter Raleigh', 'provenance': [{'wikipedia_id': '5773302', 'title': 'History of North Carolina', 'start_paragraph_id': 3, 'start_character': 298, 'end_paragraph_id': 3, 'end_character': 316, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]