Instruction: First, identify the target attributes from the provided list. Then, scan the product title, description, feature, and brand to extract the values associated with each target attribute. Finally, create a list of dictionaries, each containing the extracted attribute, its corresponding value, and the source where it was found.

Input:
Product title: Igloo 30 Quart Contour Cooler Zen Blue/Acid Green
Product description: Contemporary styling with ergonomically friendly features. Great cooler for a picnic lunch, snacks while outdoors or having a cold one with friends.
Product feature: Perfect size for a picnic, day at the ballpark, beach, or a short road trip, Ergonomically engineered! curved back hugs comfortably to your body for ultimate carrying comfort, Cool riser Technology - elevated design improves cooling performance, Swing-up handle has 3 grab/carry points for easy one-handed carrying, Molded side handles for optional two-handed carrying and easy lifting in/out of vehicles
Product brand: Igloo
Target attributes: Material
Answer: attribute: material
value: None
source: None