Instruction: First, identify the target attributes from the provided list. Then, scan the product title, description, feature, and brand to extract the values associated with each target attribute. Finally, create a list of dictionaries, each containing the extracted attribute, its corresponding value, and the source where it was found.

Input:
Product title: Silk Ivory Rug Persian Style Tabriz Rug 5x8 Living Room Rugs 5x7 Ivory Cream Carpet Area Rugs Traditional Luxury Rugs High End Silk Rugs (Medium 5'x8')
Product description: This rug is a classically and modern designed area rug that is functional, casual, soft and comfortable, and it can be used as an accent or modern to your living room or dining area, foyer, back door, any place to which you want to add a touch of dcor. Features of this durable rug include 100 percent high quality silk viscous yarn construction, stain and fade resistant material, rich, bold colors with a fine clear design throughout and a coordinated and contrasting center. Add color in front of your fireplace or dining room with this rug that is available in different sizes to suit your personal taste and needs. This rug can be spot cleaned with mild detergent and warm water. It is recommended that you vacuum this rug regularly to extend its life and visual appeal.
Product feature: Luxury High density rug, with extra soft touch. Unique shiny five color frame for Oriental, Modern, Classic and Antique look., Master Designed with a super fine silk viscous pile with hand knotted fringes on both ends for a beautiful appearance. Exquisite, durable and timeless., High Quality Rug with 1.5 Million points woven for a clear design. This rug is durable and resistant to soiling, stain, and fading., Great rug for any decor, adds texture to the floor and complements any decor., ULTRA LOW PILE SOFT LUXURY RUG. Rug pad is recommended. This rug will instantly add fashion to any room's decor. This rug features trendy colors as well as its design. Enhanced soft, shiny silk viscous fine pile keeps dirt out and keeps these rugs looking great for years.
Product price: $7.81
Product brand: AS Quality Rugs
Target attributes: Shape
Answer: attribute: shape
value: None
source: None