Instruction: Parse the product information to locate the target attribute, and then provide the extracted value of the target attribute and its source in the output, specifying None if the attribute is not present.

Input:
Product title: Celestial Seasonings Wellness Tea - Sleepytime Extra - Caffeine Free - 20 Bags (Pack of 6)
Product description: Celestial Seasonings Wellness Tea - Sleepytime Extra - Caffeine Free - 20 Bags (Pack of 6), 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: $16.40
Product brand: Celestial Seasonings
Target attributes: Form
Answer: attribute: form
value: bags
source: product description
attribute: form
value: bags
source: product title