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: CounterArt Hot and Spicy Glass Cutting Board, 14-7/8 by 11-3/4-Inch
Product description: Perfect for prepping, cutting or serving, this glass cutting board from CounterArt features a sturdy tempered glass body that is shatter-resistant and will prove to be a great counter saver. The hygienic, non-porous surface also resists stains, scratches and bacteria. The colorful, artistic design brings a distinctive style to your kitchen or buffet table. Non-skid feet on the bottom of this piece will hold the piece steady and protect your countertop from scratches. Measures 14-7/8 inches by 11-3/4 inches. Dishwasher safe.
Product feature: Sturdy tempered glass is break-resistant, Colorful artistic design, Great for prepping or serving- this piece is an excellent multi-tasker, Non-skid feet on the back prevent scratches on surfaces, Dishwasher safe
Product brand: Counterart
Target attributes: Material
Answer: attribute: material
value: glass
source: product title
attribute: material
value: glass
source: product feature
attribute: material
value: glass
source: product description