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: Oriental Weavers Brentwood 530K9 Area Rug, 6'7 x 9'3"
Product description: The Brentwood collection features a wide assortment of area rugs ranging from traditional to contemporary styles. Although the aesthetic of the line varies greatly, the compilation is unified by its cool, subdued color palette. Sleek and sophisticated, the line is based on a range of soft, elegant neutral hues like light ivory, warm taupe, silvery sage, desert clay and deep charcoal. Featuring 10 unique styles, the Brentwood collection is sure to appeal to any consumer seeking understated elegance.
Product feature: The Brentwood collection features a wide assortment of area rugs ranging from traditional to contemporary styles, Although the aesthetic of the line varies greatly, the compilation is unified by its cool, subdues color palette, Sleek and sophisticated, the line is based on a range of soft, elegant neutral hues like light ivory, Featuring 10 unique styles, the Brentwood collection is sure to appeal to any consumer seeking understated elegance
Product price: $21.29
Product brand: Oriental Weavers
Target attributes: Shape
Answer: attribute: shape
value: None
source: None