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: Sierra Lifestyles SL-681325 Pinecone Cab Knob, Black,SIERRA LIFESTYLES,SL-681325" />
Product description: Spruce up your cabinets with new novelty hardware. This is an intricate and detailed cabinet knob that will enhance the dcor of your environment. Pinecone Cabinet Knob, is constructed in black. The rustic design of this hardware will certainly add a nature-inspired touch to any room. Made with the highest quality., Spruce up your cabinets with new novelty hardware. This is an intricate and detailed cabinet knob that will enhance the dcor of your environment. Pinecone Cabinet Knob, is constructed in black. The rustic design of this hardware will certainly add a nature-inspired touch to any room. Made with the highest quality
Product feature: Pinecone Cabinet Knob, Constructed in black, Intricate and detailed cabinet knob that will enhance the dcor of your environment, Rustic design of this hardware will add a wilderness-inspired touch, Made with the highest quality
Product price: $10.99
Product brand: Sierra Lifestyles
Target attributes: Finish
Answer: attribute: finish
value: None
source: None