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: NOW Foods Comfy Chamomile Tea, 24-Count(Pack of 5)
Product description: NOW Foods Comfy Chamomile Tea, 24-Count(Pack of 5), Chamomile Flower, 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: NOW Foods
Target attributes: Black Tea Variety
Answer: attribute: black tea variety
value: None
source: None