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: HTC T-Mobile MyTouch 3G Slide (Black) Unlocked
Product description: Running on Android 2.1, the myTouch 3G Slide helps you stay connected with unique features like Wi-Fi calling, the Genius Button, and access to thousands of Android apps. With Wi-Fi calling on your myTouch 3G Slide, you can make and take Wi-Fi calls anywhere there is a Wi-Fi signal, whether its in your home, your office, or the local coffee shop. Wi-Fi calling is a great solution for increasing coverage.
Product feature: Slide out keyboard, Comes rooted with Android 2.2 or unrooted with Android 2.1, Unlocked cell phones are compatible with GSM carriers like AT&T and T-Mobile as well as with GSM SIM cards (e.g. H20, Straight Talk, and select prepaid carriers). Unlocked cell phones will not work with CDMA Carriers like Sprint, Verizon, Boost or Virgin.
Product brand: HTC
Target attributes: Display Resolution
Answer: attribute: display resolution
value: None
source: None