Instruction: First, identify the target attributes from the provided list. Then, scan the product title, description, feature, and brand to extract the values associated with each target attribute. Finally, create a list of dictionaries, each containing the extracted attribute, its corresponding value, and the source where it was found.

Input:
Product title: 8 Scented Markers Scented Felt Tip Pens Smell Pens Fruit Smelly Pens Fragrance
Product description: Includes following scents: Pink - Rose Green - Apple Mauve - Grape Yellow - Lemon Orange - Orange Red - Strawberry Purple - Lavender Blue - Peppermint Make your colouring and drawing really come to life with smelly pen.
Product feature: 8 scented markers pens, Felt tip pens, Age 3+, All pens feature safety caps and have thick bullet style nibs
Product brand: Grafix
Target attributes: Quantity
Answer: attribute: quantity
value: None
source: None