Instruction: Extract the value of the target attribute from the given product information and output it along with the corresponding source.

Input:
Product title: Yala LFL425QNBLACK Luxury Silk Habotai Flat Sheet, Queen, Black
Product description: LFL425 queen flat - black seamless silk flat queen sheet. 15 momme, sand washed habotai silk with charmeuse trim.
Product feature: 100% Silk Habotai, Imported, 100% habotai silk, Available in black color, Available in queen size
Product price: $124.00
Product brand: Yala
Target attributes: Thread Count
Answer: attribute: thread count
value: None
source: None