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: Lenovo ThinkPad T400 - 14.1" - Intel Core 2 Duo P8400 - 2 GB RAM - Windows 7 Pro - 647411U
Product description: The ThinkPad T400 Notebook is designed to enhance productivity and change the way you work. It features widescreen display that helps to lower power consumption and offers brighter colors. It is equipped with a full range of technologies that includes DDR3 memory modules and a wider Touchpad for improved ergonomics., ThinkVantage Client security solution with Integrated Fingerprint reader and SmartCard support are other innovative features that gives this notebook extra protection by securing data aganist potential intruders., Specifications Model: 6474 Processor: Intel Core2Duo-P8400 2.26GHz Memory: 2GB DDR3 Operating System: Windows 7 Pro
Product feature: Intel Core 2 Duo P8400 2.26GHz, 2GB Memory, 14.1-inch widescreen LCD with 1280 x 800 resolution and Intel GMA 4500MHD, 802.11a/b/g/n and Bluetooth v2.1 wireless connectivity, CD-RW/DVD-ROM optical drive
Product brand: Lenovo
Target attributes: Battery Life
Answer: attribute: battery life
value: None
source: None