Instruction: Using the product's title, description, features, price, and brand, identify and retrieve the values associated with a specified set of target attributes. Output the extracted values along with their respective sources (e.g., title or feature) indicating where each value was found.

Input:
Product title: Paper Magic - Custom Bundle - 50 count Occasion Handmade/Embellished Box Cards - For Every Occasion
Product description: Paper Magic - Custom Bundle - 50 count Occasion Handmade/Embellished Box Cards - For Every Occasion
Product feature: 50 total Greeting cards with coordinating envelopes; a mix of handmade cards and highly embellished cards, Contains 24 birthday cards, 8 congratulations cards (baby, wedding, etc.), 6 care & concern cards, 2 thank you card, and 10 friendship / blank cards, Reusable keepsake box is lidded and attractive for after your cards are gone!, Index cards included to help keep cards organized, Always have a card on hand!
Product brand: Paper Magic
Target attributes: Quantity
Answer: attribute: quantity
value: 50 count
source: product description
attribute: quantity
value: 50 count
source: product title