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: Fel-Pro VS50572R Valve Cover Set
Product description: Fel-Pro gaskets offers 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust.
Product feature: Meets or exceeds all original equipment specifications, Validated for fit, form, and function, Application specific design, Engineered and manufactured specifically for the repair environment, Quality you can trust
Product price: $20.84
Product brand: Fel-Pro
Target attributes: Gasket Type
Answer: attribute: gasket type
value: valve cover
source: product title