Question: what do the letters ms in msnbc stand for
[{'answer': 'Microsoft', 'provenance': [{'wikipedia_id': '159846', 'title': 'MSNBC', 'start_paragraph_id': 1, 'start_character': 365, 'end_paragraph_id': 1, 'end_character': 374, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '159846', 'title': 'MSNBC', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 904, 'bleu_score': 0.9497415551516891, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 787168693167212916}, 'section': 'Section::::Abstract.'}]}]