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: Nikon 8072 Microfiber Cleaning Cloth (2PCS)
Product description: Nikon Microfiber Cleaning ClothFeatures: Perfect way to safely maintain and clean your lenses Durable, micro-fiber material Anti-static quality great for cameras and other delicate equipment Use on any other lens optics such as binoculars, telescopes, and spotting scopes Comes with clip-on carry case, Package included 2 PCS
Product feature: Perfect way to safely maintain and clean your lenses, Durable micro-fiber material, Anti-static quality great for cameras and other delicate equipment, Use on any other lens optics such as binoculars, telescopes, and spotting scopes, Comes with clip-on carry case, Package included 2 PCS
Product brand: Nikon
Target attributes: Form
Answer: attribute: form
value: cleaning cloth
source: product title
attribute: form
value: microfiber
source: product description