Instruction: Parse the product information to locate the target attribute, and then provide the extracted value of the target attribute and its source in the output, specifying None if the attribute is not present.

Input:
Product title: Creative Balloons 12" Latex Balloons - Pack of 144 Piece - Decorator Snow White
Product description: 12 inch top quality, helium-grade, 144 ct. Latex balloons are great for balloon bouquets, balloon clusters and event decorations such as birthdays, graduations, quince eras, baby showers and much more 12 inch latex balloons are perfect for creating beautiful balloon bouquets as gifts, as balloon clusters when decorating special events and sold or handed-out individually at retail locations. They also act as eye-catching, affordable attention getters for retail stores and businesses.
Product feature: Helium grade latex balloons, Festive vibrant color balloons, 100% biodegradable latex balloons, Convenient retail-ready packaging includes UPC barcode, Value size includes 144 piece latex balloons
Product price: $13.70
Product brand: Creative Balloons Mfg. Inc.
Target attributes: Quantity
Answer: attribute: quantity
value: includes 144
source: product feature
attribute: quantity
value: 144 ct
source: product description
attribute: quantity
value: pack of 144 piece
source: product title