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: LG 60PY3D 60-inch 1080p Plasma Flat Panel HDTV
Product description: 1920 x 1080p Full HD Resolution 3,000:1 Contrast Ratio Includes XD Engine Also includes LG SimpLink 3 HDMI with HDCP
Product feature: 1920 x 1080p Full HD Resolution, 3,000:1 Contrast Ratio, Includes XD Engine, Also includes LG SimpLink, 3 HDMI with HDCP
Product brand: LG
Target attributes: Sony Technology Line
Answer: attribute: sony technology line
value: None
source: None