Instruction: Extract the value of the target attribute from the given product information and output it along with the corresponding source.

Input:
Product title: Business Source Business Source Side-loading Letter Tray - Clear
Product description: Business Source Side-loading Letter Tray
Product feature: Manufacturer: Business Source
Product price: $9.76
Product brand: Business Source
Target attributes: Type
Answer: attribute: type
value: letter tray
source: product title
attribute: type
value: letter tray
source: product description