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: FOAL Every Family has a Story.Welcome to Ours -Vinyl Wall Quotes Stickers Sayings Home Art Decor Decal
Product description: PS:"FOAL" brand wall stickers, FOAL our registered brand, did not authorize other sellers sell, in order to ensure quality, please buy genuine. This item says:Every family has a story...Welcome to ours Measures Size after apply:45.7cm * 35.5cm (18inch * 14inch) Product list: wall stickers with paper base, transferring film, instructions Usage: Stick the wall stickers to the walls using transferring film Applicable for: clean flat wall, wooden and glass planes indoors Process of products: PVC molding process is used to cut off extra parts and highlight the main patterns. It's not printing process. Materials: FOAL wall stickers uses quality PVC material with moderate viscosity suitable for transferring and sticking, which complies with environmental protection standards. There's no remaining glue when stickers are peeled off. Design: FOAL wall stickers are designed by our designers independently without any complicated splicing, so customers can use them easily without wasting any precious time. Transportation: this wall sticker is shipped with hard barrel package for maximum protection of the product from any damage during transportation.
Product feature: Vinyl material,arving production and Water resistant non-marking(not printing process), Overall layout without any complicated splicing,save time, detailed instructions, FOAL independent design and production, Product upgrades according to customer comments, Hard barrel package to ensure that the product does not fold, Size:45.7cm * 35.5cm (18inch * 14inch)
Product price: $8.68
Product brand: FOAL
Target attributes: Placement
Answer: attribute: placement
value: wall stickers
source: product description
attribute: placement
value: walls
source: product description
attribute: placement
value: wall sticker
source: product description
attribute: placement
value: wall
source: product title
attribute: placement
value: wall
source: product description