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: Flexi 16-Feet Retractable Lead with Lupine Pattern Bling Bonz for Pets Up to 26-Pound
Product description: This flexi brand retractable lead matches lupine brand collars and harnesses. The flexi brand is known as the industry leader in retractable leads, made with the highest quality materials and meticulous engineering. The classic 1 offers 16-feet of freedom for dogs and small pets weighing up to 26-pound. Features a recoil system which allows the cord to extend and retract automatically with your pet's movements. Press and hold the brake to stop the lead temporarily, or 'set-feet the brake with a push of your thumb to keep the lead at that length. Release with a flick of the thumb. The hand grip is comfortably molded and the entire unit weighs just 4 1/2-pound models for larger dogs are available.
Product feature: 16-Feet cord-based retractable lead for pets up to 26-Pound, Matches lupine brand lil' bling and bling bonz collars and harnesses, Allows your pet the freedom to move while the inner spring smoothly keeps slight tension in the lead, lengthening and recoiling effortlessly, Patented flexi braking system is ergonomic and easy to operate one-handed, Precision engineered and built in germany
Product brand: Flexi
Target attributes: Pet
Answer: attribute: pet
value: dogs
source: product description