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: 2 each: Ironclad Orange I-Viz Safety Glove (IVO-03-M)
Product description: Sold as 2 UNITS at $21.06 per unit. (1 unit = each.) Padded synthetic leather palm. Velcro wrist closure for secure fit. Daytime and nighttime high visibility. Highly reflective indicator on hand and all fingers. Medium . Manufacturer number: IVO-03-M. SKU #: 7112303. Country of origin: China. Distributed by Ironclad Performance Wear.
Product feature: Padded synthetic leather palm, Velcro wrist closure for secure fit, Daytime and nighttime high visibility, Highly reflective indicator on hand and all fingers
Product brand: Ironclad
Target attributes: Size
Answer: attribute: size
value: medium
source: product description