Question: what was luke before he became a disciple
[{'answer': 'Greek physician', 'provenance': [{'wikipedia_id': '18710', 'title': 'Luke the Evangelist', 'start_paragraph_id': 5, 'start_character': 38, 'end_paragraph_id': 5, 'end_character': 53, 'bleu_score': 1.0, 'section': 'Section::::Life.\n'}]}, {'provenance': [{'wikipedia_id': '18710', 'title': 'Luke the Evangelist', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 739, 'bleu_score': 0.8316851887326431, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16450771841766622678}, 'section': 'Section::::Life.\n'}]}]