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: MeraxSet of 4 Red Plastic Modern Dining Chairs Stackable Side Chairs (Set of 4)
Product description: Dining in sleek modern style with these side chairs. Sold in a set of four, the chairs feature open backs and metal legs in a stackable design, making storage simple. The narrow profile creates a space-saving design, ideal for a breakfast nook or small apartment.
Product feature: Plastic and Metal, Imported, Red hard molded plastic seat, Chromed steel legs from scratches and damage for long use, Non-marring foot glides protect your floor from scratches, Stackable design allows you to store the chairs in a small space, Dimensions (overall): 20 inches (w) x 21.6 inches (d) x 33.6 inches (h)
Product brand: Merax
Target attributes: Type
Answer: attribute: type
value: side chairs
source: product title
attribute: type
value: side chairs
source: product description