Instruction: Using the product's title, description, features, price, and brand, identify and retrieve the values associated with a specified set of target attributes. Output the extracted values along with their respective sources (e.g., title or feature) indicating where each value was found.

Input:
Product title: 1500 Thread Count Egyptian Cotton 1500TC Sheet Set, King, Black Solid 1500 TC
Product description: Package contains 1 Flat Sheet, 1 Fitted Sheet and 2 Pillow Case in a beautiful zippered package. Wrap yourself in these 100% Egyptian Cotton Superior bed sheets that are truly worthy of a classy elegant suite, and are found in world class hotels. These fine Luxury Bed Linens are crafted from Long Staple Giza Cotton grown in the lush Nile River Valley since the time of the Pharaohs. Comfort, quality and opulence set our Luxury Bedding in a class above the rest. Elegant yet durable, their softness is enhanced with each washing. You will relax and enjoy the rich, soft and luxurious feeling of cotton sheets.
Product feature: Egyptian Cotton, 100% Luxury 1500TC long-staple Egyptian Cotton Sheet Set, 1 Flat Sheet (110" x 102"), 1 Fitted Sheet (78" x 80") and 2 King Pillow Cases (20" x 40"), Fits mattresses up to 14" - 20" deep with elastic all around the fitted sheet, Machine wash in cold water with similar colors. Tumble dry low. Do not bleach, Brand New and Factory Sealed.
Product price: $100.24
Product brand: Egyptian Bedding
Target attributes: Thread Count
Answer: attribute: thread count
value: 1500 tc
source: product title
attribute: thread count
value: 1500tc
source: product title
attribute: thread count
value: 1500tc
source: product feature
attribute: thread count
value: 1500 thread count
source: product title