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: Elegant Personalized Note Card Set - (3 color choices) - 24 cards with envelopes, 4-1/4" x 5-1/2" blank inside, Add a Name, Thank you Card, Friendship Gift
Product description: With choices of three beautiful colors lavender, berry, or navy plus script lettering, your correspondence will definitely stand out from all the rest! White envelopes. 4" x 5 1/2".25-card set; single design.Specify lavender, berry or navy print.Specify 1 line, up to 12 characters and spaces.If you have selected script font, you must use upper and lower case letters. Do NOT use all caps.
Product feature: Personalized Note Cards - Set of 24 with white envelopes., Choose one of these fun ink colors for your name, with inside blank. Cards are 4 1/4" x 5 1/2", quality stock, and come in a gift package., Blank-inside folded cards are perfect for notes, thank yous, and even invitations., Specify 1 line, up to 12 characters and spaces. Specify ink color of lavender, navy or berry., Please Note: We are unable to print foreign characters in personalization.
Product price: $15.99
Product brand: Current
Target attributes: Quantity
Answer: attribute: quantity
value: 24 cards
source: product title
attribute: quantity
value: set of 24
source: product feature