Question: 4. what is an ou in active directory
[{'answer': 'Organizational Units', 'provenance': [{'wikipedia_id': '2807', 'title': 'Active Directory', 'start_paragraph_id': 37, 'start_character': 53, 'end_paragraph_id': 37, 'end_character': 73, 'bleu_score': 1.0, 'section': 'Section::::Logical structure.:Forests, trees and domains.:Organizational units.\n'}]}, {'provenance': [{'wikipedia_id': '2807', 'title': 'Active Directory', 'start_paragraph_id': 37, 'start_character': 0, 'end_paragraph_id': 37, 'end_character': 790, 'bleu_score': 0.983804329702269, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16426283999691633102}, 'section': 'Section::::Logical structure.:Forests, trees and domains.:Organizational units.\n'}]}]