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: East Side Collection Nylon Adjustable Rhinestone Dog Collar, 14 to 18-Inch, Black
Product description: East Side Collection rhinestone collar gives dogs a dazzling look. Glittery fashion collars are the perfect accessory for pampered pets. Made of durable, woven nylon with a row of hand-stitched rhinestones that add glamour and shine. Buckles and hardware are nickel-plated for durability. Collars are available in three widths and four lengths to fit any dog. Each comes with a hangtag for easy peg display. Fits 14-inch to 18-inch dog necks. Available in black color. Measures 1-inch width.
Product feature: Rhinestone collar gives dogs a dazzling look, Glittery fashion collar is the perfect accessory for pampered pets, Made of durable, woven nylon with a row of hand-stitched rhinestones that add glamour and shine, Buckles and hardware are nickel-plated for durability, Measures 1-inch width; available in black color
Product brand: East Side Collection
Target attributes: Size
Answer: attribute: size
value: None
source: None