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: Chef Splendid 3-Piece Non-Slip Plastic Cutting Board Set, Drip Juice Groove, Dishwasher Safe, BPA Free, FDA Approved
Product feature: Versatile 3 board sizes are included in this set to meet all you cutting needs. Large: 15.75 x 9.50, Medium: 12.50 x 7.75 and Small: 10.00 x 5.75. All three boards are 0.33 thick, Dishwasher safe The cutting boards are easy to clean and disinfect!, Durable Will NOT crack, warp bend or splinter while being gentle on your knives, Manufactured from heat resistant, non-porous, odor, and stain resistant polypropylene, Design features include a deep juice groove on one side and flat surface on the other side with non-slip edges made of thermal plastic rubber for easy handling and reduce board movement on kitchen work surface
Product price: $19.51
Product brand: Chef Splendid
Target attributes: Shape
Answer: attribute: shape
value: None
source: None