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: Acer AS5735-6694 15.6-Inch Laptop
Product description: Intel Core2 Duo Mobile Processor T6400 (1 MB L2 Cache, 2.0 GHz, 667 MHz FSB); Windows Vista Home Premium 64-bit with Service Pack 1; 15.6-inch Widescreen WXGA (HD) Acer CrystalBrite; Mobile Intel GM45 Express Chipset Packaging and Documentation; 4096MB DDR2 667 MHz Dual Channel Memory; Intel Graphics Media Accelerator 4500M Hardware Items; 250GB 5400RPM SATA Hard Drive 6-Cell Lithium-Ion (2.2AHr) Battery; 8X DVD-Super Multi Double-Layer Drive AC Power Adapter; 5-in-1 Digital Media Card Reader AC Power Cord; Intel WiFi Link 5100 802.11a/b/g/Draft-N Wireless LAN; 3 - USB 2.0 Ports; 6-Cell Lithium-Ion (2.2AHr) 3 Features Rich Images Bring Media to Life Documentation; 5.94 lbs. | 2.7 kg. (system unit only).
Product feature: Multimedia-focused laptop with award-winning sapphire blue Gemstone design and 15.6-inch screen for true 16:9 aspect ratio, 2.0 GHz Intel Core 2 Duo T6400 processor, 250 GB hard drive, 4 GB RAM, dual-layer DVD-R drive, Draft-N Wi-Fi (802.11a/b/g/n); Gigabit Ethernet; Intel GMA 4500MHD graphics (up to 1759 MB total), Connectivity: 3 USB, 1 VGA, ExpressCard 54/34, 6-in-1 memory card reader, Pre-installed with Windows Vista Home Premium with SP1 (64-bit version)
Product brand: Acer
Target attributes: Battery Life
Answer: attribute: battery life
value: None
source: None