Instruction: Using the product's title, description, features, price, and brand, identify and retrieve the values associated with a specified set of target attributes. Output the extracted values along with their respective sources (e.g., title or feature) indicating where each value was found.

Input:
Product title: Lenovo Yoga Multimode 10-inch Tablet
Product description: The world's first multi-mode tablet, the Lenovo Yoga Tablet 10, features a unique kickstand and battery that allow comfortable use in three different modes - Hold for reading, Stand for viewing and Tilt for playing games, for up to 18hrs on a single charge.
Product feature: Epic 18-hour battery life, Multiple usage modes: Hold, Tilt, and Stand, Android 4.2 Jelly Bean, 10.1-inch Display, MediaTek MT8389 Quad Core Processor (1.2GHz), 16 GB Flash Memory, 1 GB RAM Memory
Product brand: Lenovo
Target attributes: Screen Size
Answer: attribute: screen size
value: 10-inch
source: product title