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: Concord EyeQ Digital Camera w/ 3x Optical Zoom
Product feature: VGA sensor interpolates to 1 megapixel--great for snapshots, 3x optical zoom lens, Internal memory stores up to 72 images, USB connectivity for quick file transfers, Long lasting battery good for 200-300 images; unique internal LCD display and ultracompact design
Product brand: Concord Camera
Target attributes: Sensor Type
Answer: attribute: sensor type
value: None
source: None