Das Keyboard 4 Professional Cherry MX Brown
[{'entity': 'BRAND', 'value': 'Das Keyboard', 'span': [0, 12]}, {'entity': 'PRODUCT_NAME', 'value': '4 Professional', 'span': [13, 27]}, {'entity': 'ATTRIBUTE', 'value': 'Cherry MX Brown', 'span': [28, 43]}]
Das Keyboard 4 Professional Cherry MX Brown