Instruction: Given the title, description, feature, price, and brand of a product and a set of target attributes, extract the value of each target attribute from the product information. Output the extracted value and the corresponding source (e.g., title or feature) denoting where the value is extracted.

Input:
Product title: Dagger Kayaks Zydeco 9.0 Kayak
Product description: Put yourself in command, from flat-water cruising to taking full control in moving water of rivers and inlets. The Zydeco design has been completely overhauled for even more maneuverability and faster acceleration than ever before.
Product feature: CFS-R Seating System, Bungee Deck Rigging, Paddle Park, Slide lock Foot brace System
Product brand: Dagger
Target attributes: Length
Answer: attribute: length
value: None
source: None