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: SARO LIFESTYLE HK116 2-Piece Wall Hook Set, Black
Product description: Accent your boutique or wardrobe with Saro Lifestyle's dragonfly design iron wall hooks in sleek black.
Product feature: Dragonfly Design Wall Hook; 6"x 5;5"x 2"; One Piece, Made of Metal, Clean With A Damp Cloth
Product brand: SARO LIFESTYLE
Target attributes: Installation
Answer: attribute: installation
value: None
source: None