Question: what is the meaning of the name demetrius
[{'answer': 'devoted to Demeter', 'provenance': [{'wikipedia_id': '286508', 'title': 'Demetrius', 'start_paragraph_id': 1, 'start_character': 94, 'end_paragraph_id': 1, 'end_character': 112, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '286508', 'title': 'Demetrius', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 291, 'bleu_score': 0.8928756684056031, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2267496826694058610}, 'section': 'Section::::Abstract.'}]}]