Instruction: Parse the product information to locate the target attribute, and then provide the extracted value of the target attribute and its source in the output, specifying None if the attribute is not present.

Input:
Product title: LXG Usc Trojans 16oz Ceramic Bistro Coffee Mug
Product description: This 16oz bistro inspired ceramic coffee mug features a laser etched team logo.
Product feature: Officially Licensed NCAA Product
Product price: $18.99
Product brand: LXG
Target attributes: Material
Answer: attribute: material
value: ceramic
source: product title
attribute: material
value: ceramic
source: product description