Question: who is credited with establishing the constantine chapter
[{'answer': 'Harry St. John Dixon', 'provenance': [{'wikipedia_id': '615651', 'title': 'Sigma Chi', 'start_paragraph_id': 21, 'start_character': 0, 'end_paragraph_id': 21, 'end_character': 20, 'bleu_score': 1.0, 'section': 'Section::::History.:Early years.:Constantine Chapter.\n'}]}, {'provenance': [{'wikipedia_id': '615651', 'title': 'Sigma Chi', 'start_paragraph_id': 21, 'start_character': 0, 'end_paragraph_id': 21, 'end_character': 557, 'bleu_score': 0.9792717993254391, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13933259869685299157}, 'section': 'Section::::History.:Early years.:Constantine Chapter.\n'}]}]