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: National Cabinet Lock C8053-14A-KA Cam Lock, 1-3/16" Cylinder Length, Bright Nickel Finish - Keyed Alike
Product description: Cam Lock
Product feature: Disc Tumbler Cylinder Cam Lock for Drawers or Doors, Lipped/Overlay Construction (Straight Cam) or Flush Construction (Formed Cam), 90-Degree Turn on all Locks, 1-3/16" Cylinder Length, Bright Nickel Finish, Keyed Alike
Product price: $11.07
Product brand: National Cabinet Lock
Target attributes: Type
Answer: attribute: type
value: locks
source: product feature
attribute: type
value: lock
source: product brand
attribute: type
value: lock
source: product description
attribute: type
value: lock
source: product title
attribute: type
value: lock
source: product feature