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: HP ENVY 17-2290NR Notebook (2.2 GHz Intel Core i7 -2670QM Processor, 8GB DDR3, 1.5TB HDD, Windows 7 Home Premium) Gray
Product description: Enjoy a new dimension with 3D technology on the HP ENVY 17-2290NR, which comes with a pair of 3D glasses. Watch Blu-ray DVDs on a large 17.3 inch diagonal Full HD LED-backlit display that delivers crisp, clear picture quality in 2D and 3D. Play music the way it's meant to be heard using Beats Audio and experience fast gaming with a powerful processor and HD video graphics. This HP laptop also has a large 1500GB dual hard drive to store your music library, videos and more. Plus, you can stream content wirelessly to an HD TV using Intel Wireless Display. Keep your HP laptop powered for up to 2 hours and 15 minutes using the primary battery, then switch to the extra battery included in the box for up to 3 hours and 45 minutes more. The HP ENVY 17-2290NR notebook is a work of art with a durable and stylish etched aluminum finish in carbon relic. See and feel the difference of the full size island style backlit keyboard, plus enter data quickly using the numeric keypad. Integrated Wi-Fi and Bluetooth help you connect and sync your HP laptop to a printer, MP3 player or smartphone without using cables. You can also video chat in low light environments using the integrated webcam and transfer photos directly from a memory card to your notebook PC. With 8GB of memory, this HP ENVY makes productivity simple.
Product feature: Intel Core i7 Processor 2.2GHz, 8GB DDR3 SDRAM RAM, 1.5TB 7200RPM Hard Drive, 17.3-Inch Screen, AMD Radeon HD 6850, Windows 7 Home Premium
Product brand: HP
Target attributes: Screen Size
Answer: attribute: screen size
value: 17.3-inch
source: product feature
attribute: screen size
value: 17.3 inch
source: product description