Instruction: Given the title, description, feature, price, and brand of a product and a set of target attributes, extract the value of each target attribute from the product information. Output the extracted value and the corresponding source (e.g., title or feature) denoting where the value is extracted.

Input:
Product title: SilverStone Full Tower Reinforced Plastic Outer Case RV01B-W (Black)
Product description: ATX full tower with 90 M/B mounting, E-ATX, External 5.25*5, Internal 3.5*6,Reinforced plastic outer shell, 0.8mm SECC body, black, Window
Product feature: Revolutionary 90 degrees motherboard mounting, Natural airflow layout with positive pressure design, Dual 180mm silent fans included, RADsupport included for optional liquid cooling, Flexible drive storage options with hot-swappable SATA adapter
Product brand: SilverStone Technology
Target attributes: Type
Answer: attribute: type
value: tower
source: product title
attribute: type
value: tower
source: product description
attribute: type
value: case
source: product title