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: Derker 10" Pink and White Bright Latex Balloons (100 pcs) (White+Pink)
Product description: Feature: Package of 100 Bright Latex Balloons. Measure 10" Assorted Standard Colors. Perfect for baby shower, birthday party or wedding Decoration. Package Includes: 100 pcs
Product feature: Package of 100 Bright Latex Balloons., Measure 10", Assorted Standard Colors., Perfect for baby shower, birthday party or wedding Decoration.
Product price: $8.89
Product brand: Derker
Target attributes: Quantity
Answer: attribute: quantity
value: includes: 100 pcs
source: product description
attribute: quantity
value: 100 pcs
source: product title
attribute: quantity
value: package of 100 bright latex
source: product description