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: HLC.ME Lattice Thermal Blackout Grommet Top Window Curtain Panels - Pair - 38" X 84"(each panel) inch Long (Light Grey)
Product description: Sleep? You cant really function well in life without it., Blackout curtain panels are a necessity for privacy. Being awoken by the sun is actually good for you, but there are times when darkening a room aids in sleep especially for napping children, shift workers or others with non traditional sleep schedules and for blocking artificial night time light such as from a streetlamp. Blackout curtains also are energy saving (keeping heat from escaping in the winter and the hot sun from heating up your room in the summer) and help block or muffle outdoor noise.
Product feature: DESIGN & CONSTRUCTION: These curtains block light, are satiny thick material in their feel, and have a gorgeous printed tone on tone design that makes them look really lux, rich and spot on. Each panel contains six (6) brushed nickel grommets. Package contains two (2) blackout curtains panels., BLACKOUT: Room Darkening curtains are manufactured as a triple weave innovation, which is a denser and tightly sewn fabric to help insulate against light. These blackout curtains would be a great add for your bedroom, livingroom, or your kids room., ENERGY-EFFICIENT: HLC.ME Blackout Curtains are great for energy-saving. These curtains are insulated to block the heat or cold from entering your home and allowing you to decrease your heat and cooling systems up to 30% of your bill. A great way to save money with a one time purchase of these blackout curtains., REDUCES NOISE: No one wants to have their conversation heard from outside their home. Use these blackout curtains in your livingroom when the guests come over for greetings. It can get very loud and you do not want pedestrians hearing in on your conversations., MACHINE WASHABLE: Machine Wash Cold, delicate cycle with mild detergent. Do not bleach. Tumble Dry Low. Cool iron if needed.
Product price: $23.99
Product brand: HLC.ME
Target attributes: Attachment Method
Answer: attribute: attachment method
value: grommets
source: product feature
attribute: attachment method
value: grommet top
source: product title