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: Doberman Pinscher - Coffee Mug
Product description: This colorful ceramic Doberman Pinscher mug is perfect for your early morning beverage. The raised lettering and unique design add texture and beauty to the over-sized mug. Dishwasher and microwave safe. (Mugs are sold INDIVIDUALLY.)
Product feature: ONE 18 oz. Mug, Raised Lettering, Ceramic, Dishwasher and Microwave Safe
Product price: $20.95
Product brand: Flagline
Target attributes: Material
Answer: attribute: material
value: ceramic
source: product feature
attribute: material
value: ceramic
source: product description