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: Sunlera Cordless Tdbu 1/2 Inch Single Cell Shades 30 In X 48 In Snow White
Product description: Sunlera Cordless TDBU 1/2 inch Single Cell Shades. 30 inches wide by 48 inches high in Snow White. This unique product offers a top down bottom up lift without any dangling lift cords. Cordless TDBU 1/2" Single Cell Shades are ideal for small children or pets since the cords run through the center of the shades.Simply grab the shades from the top and pull down to lower or lift the bottom rail to raise the bottom. The top down bottom up feature allows the honeycomb shades to be lowered from the top down as well as raised. This is a great way to allow light to enter the room from the top portion of the window while providing better privacy.Designed with a single cell light filtering fabric that is durable with color on both sides of the shades. You will not find a better bargain
Product price: $48.41
Product brand: BlindsChalet
Target attributes: Type
Answer: attribute: type
value: shades
source: product title
attribute: type
value: shades
source: product description