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: California Olive Ranch Everyday Extra Virgin Olive Oil - 25.4 oz
Product description: Award winning 100% California grown olives are cold pressed within hours of picking., Like fine wine, natural fruit sediment may occur. Store away from heat and light., 100% Naturally unfiltered, unrefined extra virgin olive oil., 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 brand: California Olive Ranch
Target attributes: Grade
Answer: attribute: grade
value: extra virgin
source: product title
attribute: grade
value: extra virgin
source: product description