Astell&Kern SP3000 digital audio player copper
[{'entity': 'BRAND', 'value': 'Astell&Kern', 'span': [0, 11]}, {'entity': 'PRODUCT_NAME', 'value': 'SP3000', 'span': [12, 18]}, {'entity': 'CORE_PRODUCT_TYPE', 'value': 'digital audio player', 'span': [19, 39]}, {'entity': 'MATERIAL', 'value': 'copper', 'span': [40, 46]}]
Astell&Kern SP3000 digital audio player copper