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: ACME 60012 Dresden Side Chair, Cherry Oak Finish, Set of 2
Product description: The Dresden Traditional dining Collection reflects highly decorative base with ball and claw feet, shaped top and decorative carving on apron. The dining chairs reflect carefully selected PU, woodcarving and tapestry fabric in a symphony of material.
Product feature: Pu Seat upholstered, Fabric seat back, ball and claw feet
Product price: $55.99
Product brand: ACME
Target attributes: Upholstery Material
Answer: attribute: upholstery material
value: None
source: None