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: AMD Athlon 64 X2 6000+ 3.1 GHz 2 x 512 KB L2 Cache 89W Socket AM2 processor
Product description: AMD Athlon 64 X2 6000+ 3.1 GHz 2 x 512 KB L2 Cache 89W Socket AM2 processor
Product feature: Clock multiplier: 15.5, 2 cores, 2 threads, Level 2 cache: 2 x 512 KB, Thermal Design Power: 89 Watt, Warranty: 3 month
Product price: $19.68
Product brand: AMD
Target attributes: FSB Speed
Answer: attribute: fsb speed
value: None
source: None