Question: what are the three greek orders of columns
[{'answer': 'Doric', 'provenance': [{'wikipedia_id': '6938', 'title': 'Classical order', 'start_paragraph_id': 2, 'start_character': 323, 'end_paragraph_id': 2, 'end_character': 328, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Ionic', 'provenance': [{'wikipedia_id': '6938', 'title': 'Classical order', 'start_paragraph_id': 2, 'start_character': 330, 'end_paragraph_id': 2, 'end_character': 335, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Corinthian', 'provenance': [{'wikipedia_id': '6938', 'title': 'Classical order', 'start_paragraph_id': 2, 'start_character': 341, 'end_paragraph_id': 2, 'end_character': 351, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '6938', 'title': 'Classical order', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 829, 'bleu_score': 0.8274663144676091, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11212459741069253262}, 'section': 'Section::::Abstract.'}]}]