Instruction: Given the title, description, feature, price, and brand of a product and a set of target attributes, extract the value of each target attribute from the product information. Output the extracted value and the corresponding source (e.g., title or feature) denoting where the value is extracted.

Input:
Product title: Jewelry Monster Clip-on "Microphone" Charm Bead 45818
Product feature: Quantity: 1 Bead, Material: Base Metal Silver Plated, Size: 26mm Height x 7mm Wide x 4.1mm Internal Lobster Clasp, Clip on charm can be used with any chain link pendant bracelets or necklaces.
Product brand: Jewelry Monster
Target attributes: Birth Month
Answer: attribute: birth month
value: None
source: None