Question: how many keys are on microsoft windows standard keyboard
[{'answer': '104', 'provenance': [{'wikipedia_id': '18842281', 'title': 'Computer keyboard', 'start_paragraph_id': 19, 'start_character': 245, 'end_paragraph_id': 19, 'end_character': 248, 'bleu_score': 1.0, 'section': 'Section::::Keyboard types.:Standard.\n'}]}, {'provenance': [{'wikipedia_id': '18842281', 'title': 'Computer keyboard', 'start_paragraph_id': 19, 'start_character': 0, 'end_paragraph_id': 19, 'end_character': 1099, 'bleu_score': 0.9300464270741721, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6332839476656910207}, 'section': 'Section::::Keyboard types.:Standard.\n'}]}]