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: Mustek PF-A850SD 8.5-Inch Digital Photo Frame
Product description: Digtal Photo Frame with 8.5-inch TFT-LCD
Product feature: 8.5-inch Color Digital TFT LCD Display, Supports image file up to 12 Mega pixels (JPEG format), Support SD/MMC/MS/MS Pro/CF memory card, Detachable stand for landscape or portrait display, 2.2 Lbs (WxLxH) 9.3" x 1.3" x 7.0"
Product price: $3.75
Product brand: Mustek
Target attributes: Special Occasion
Answer: attribute: special occasion
value: None
source: None