Instruction: Using the product's title, description, features, price, and brand, identify and retrieve the values associated with a specified set of target attributes. Output the extracted values along with their respective sources (e.g., title or feature) indicating where each value was found.

Input:
Product title: Tree-Free Greetings Set Of 4 Cork-Backed Coasters, 3.75 x 3.75 Inches, Peace Love Cat Themed Pet Lover Art (96182)
Product description: Tree-Free Greetings strives to use the most sustainable materials and processes possible. Printed and assembled in the USA, the Tree-Free Greetings sustainably made cork-backed coasters are vibrantly printed with Angi Sullies and Silas Tomball art laminated to a premium 100 percent post consumer recycled inner fiberboard, and protected with a wipe-clean waterproof top film. This 4-count cork-backed coaster set makes the perfect gift. Brighten someone's day and brighten everyone's future with a sustainable Tree-Free gift today.
Product feature: 4 cork-backed coasters in a gift able acrylic box, 100 percent post consumer recycled inner chipboard and a waterproof top film, Easy to wipe clean with a little soap and water, 3.75 x 3.75 inches, Peace Love Cat themed pet lover art
Product price: $18.00
Product brand: Tree-Free Greetings
Target attributes: Quantity
Answer: attribute: quantity
value: of 4 cork-
source: product title
attribute: quantity
value: 4 cork
source: product feature
attribute: quantity
value: 4-count
source: product description