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: SAN84074 - Expo Dry Erase Markers
Product description: Bold color commands attention even at a distance, which is perfect for the office and classroom. Quick-drying, smear proof ink erases easily. Use to write on whiteboards, glass and most nonporous surfaces. Marker Type: Dry Erase Assortment: Black Blue Green Red Colors: Assorted Tip Type: Fine.
Product feature: Marker_Type - Dry Erase, Assortment - Red, Colors - Assorted, Tip_Type - Fine
Product price: $4.99
Product brand: Expo
Target attributes: Type
Answer: attribute: type
value: marker
source: product description
attribute: type
value: marker
source: product feature
attribute: type
value: markers
source: product title