Instruction: Given the title, description, feature, price, and brand of a product and a set of target attributes, extract the value of each target attribute from the product information. Output the extracted value and the corresponding source (e.g., title or feature) denoting where the value is extracted.

Input:
Product title: International Collection White Truffle Olive Oil, 8.45 Fluid Ounce - 6 per case.
Product description: International Collection White Truffle Olive Oil, 8.45 Fluid Ounce -- 6 per case. The unique taste of truffle oil can be used to enhance any dish and provides a delicate alternative to the intense flavor of truffles in their raw form. Its earthy richness transforms even the most simple of dishes into gourmet taste sensations. Infused with the finest olive oil, white truffle oil boasts many of the same nutritional benefits and is widely used in the famously healthy Mediterranean diet. Low Carb, 'OLIVE OIL, FLAVORING. PRODUCED IN A FACILITY THAT HANDLES TREE NUT AND PEANUT OILS.', 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: $45.99
Product brand: International Collection
Target attributes: Grade
Answer: attribute: grade
value: None
source: None