Instruction: First, identify the target attributes from the provided list. Then, scan the product title, description, feature, and brand to extract the values associated with each target attribute. Finally, create a list of dictionaries, each containing the extracted attribute, its corresponding value, and the source where it was found.

Input:
Product title: Diamond Multimedia Boost AMD R7 240 PCIE GDDR5 1GB Memory Low Profile Graphics Video Card R7240D51GXOC
Product description: The Diamond AMD Radeon R7 240 GPUs are packed with incredible features and unprecedented performance. These advanced graphics cards feature the award-winning GCN Architecture for spectacular performance and efficiency. 1 Equipped with the latest technologies, such as PCI Express 3.0, AMD Power Tune technology, the incredibly efficient AMD Zero Core Power technology, and AMD App Acceleration - enhanced performance to accelerate your game & multimedia applications - why settle for anything less?
Product feature: GCN Architecture, AMD Power Management Technologies, AMD App Acceleration
Product brand: Diamond Multimedia
Target attributes: Manufacturer
Answer: attribute: manufacturer
value: diamond multimedia
source: product brand
attribute: manufacturer
value: diamond multimedia
source: product title
attribute: manufacturer
value: diamond
source: product description