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: Tire Duro 700 x 38c Green/Green Side Wall HF-105.Bicycle tire, bike tire, track bike tire, fixie bike tire, fixed gear tire
Product description: Duro Brand HF-105 City Cavalier 35-55 PSI.
Product feature: We carry over 3,000 bicycle parts and accessories. If you have any questions about any of our parts, please send us an email., Duro Brand HF-105 City Cavalier 35-55 PSI., sold 1 each
Product price: $24.99
Product brand: Lowrider
Target attributes: Style
Answer: attribute: style
value: None
source: None