Instruction: Extract the value of the target attribute from the given product information and output it along with the corresponding source.

Input:
Product title: Cabrelli Darcey Duplex 15" Laptop Rollerbrief (Taupe/Brown)
Product description: The Cabrelli Darcey Duplex Rollerbrief has to carry handles and gold hardware which gives it a more fashion look. It features padded compartments for a tablet and a 15" laptop.
Product feature: 18 x 15.5 x 8 inches weighing 6 pounds, Padded 15" laptop compartment, Padded tablet compartment, Interior organizer section, In-line wheels
Product brand: Cabrelli
Target attributes: Design
Answer: attribute: design
value: None
source: None