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: Lenovo IdeaPad Miix 700, 12.2-Inch Windows Laptop, 2 in 1 Laptop, (Intel Core m5-6Y54, 1.1 GHz, 4 GB DDR3, 128 GB SSD, Windows 10), Gold, 80QL0008US
Product description: Being different doesn't mean being better. It's an attitude and belief that taking something familiar and changing the way you look at it creates possibilities. Designed differently from other tablets with its unique dual watchband hinges, the MIIX 700 opens the door for new and disruptive ways to work and play.
Product feature: 2-IN-1 TABLET: This convertible laptop includes a detachable folio keyboard with a unique watchband hinge to easily transform from laptop to tablet; work when you need, play when you want, HIGH DEFINITION DISPLAY: 12-inch laptop has a full high definition display delivering crisp, vivid visuals in a 16:9 widescreen, PREMIUM PERFORMANCE: This portable computer has a powerful Intel Core M processor, plus blazing fast Internet speeds and a 9 hour battery life to suit your life on-the-go, 3D CAMERA: Laptop camera is equipped with Intel RealSense technology so you can share objects or people in 3D; take gaming, entertainment, and video chats to another dimension, ACTIVE PEN: Get creative with the Lenovo Active Pen (not included) and draw or take notes directly on the screen using one of 2,048 levels of pressure points
Product price: $551.00
Product brand: Lenovo
Target attributes: Number of Cores
Answer: attribute: number of cores
value: None
source: None