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: Mason Jar with Heart Cutout 1574 Rubber Stamp Shape great for Scrapbooking, Crafts, Card Making, Ink Stamping Crafts
Product description: Lovely Stamp offers creative, funny and cute craft stamps. Our stamps offer a thick stable wood handle so you know exactly where your stamping. Our stamps are laser cut with a precise crisp edges and smooth stamp surface.
Product feature: Measures 1.25 or 1-1/4 Inches at the Widest Point, Birch Wood Base and Hanfle, Highest quality Rubber, Won't crack over time., Requires an Ink Pad, 100% Made In the USA
Product price: $8.00
Product brand: Lovely Stamp
Target attributes: Material
Answer: attribute: material
value: rubber
source: product feature
attribute: material
value: rubber
source: product title