Question: what does the prefix pro mean in prokaryotic
[{'answer': 'before', 'provenance': [{'wikipedia_id': '19172225', 'title': 'Prokaryote', 'start_paragraph_id': 1, 'start_character': 185, 'end_paragraph_id': 1, 'end_character': 191, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '19172225', 'title': 'Prokaryote', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 486, 'bleu_score': 0.9257921357402691, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14672458178713814599}, 'section': 'Section::::Abstract.'}]}]