Instruction: Given the title, description, feature, price, and brand of a product and a set of target attributes, extract the value of each target attribute from the product information. Output the extracted value and the corresponding source (e.g., title or feature) denoting where the value is extracted.

Input:
Product title: Black Dock Connector Port Assembly for iPhone 3G
Product feature: Often Corrects the Following Problems:, * iPhone Does Not Charge, * No Signal,No Loudspeaker Functionality, * Low Loudspeaker Volume, * Malfunctioning home button & Transmitter Microphone
Product brand: tidemart
Target attributes: Screen Display Type
Answer: attribute: screen display type
value: None
source: None