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: Pfanni Potato Dumplings half & half (Kartoffel Knödel Halb & Halb) 200g
Product description: Pfanni Potato Dumplings half & half (Kartoffel Kndel Halb & Halb), Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.
Product price: $19.91
Product brand: Pfanni
Target attributes: Variety
Answer: attribute: variety
value: None
source: None