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: Cowboy Spur Charm Sterling Silver 3D
Product description: Spur charm is 3D and measures 14 x 7mm.
Product feature: .925 sterling silver, Attaching ring included, Charm measures 14x7mm
Product price: $12.50
Product brand: AzureBella Jewelry
Target attributes: Birth Month
Answer: attribute: birth month
value: None
source: None