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: ModHaus Living Industrial Rustic Style Black Metal Frame 6 Tier 40 inches Horizontal Bookshelf Storage Media Tower | Dark Brown Finish, Living Room Decor - Includes Pen (40-inches Wide)
Product description: Stylish, sleek and practical, this elegant rustic bookcase is a welcome addition to any contemporary home. Suitable for a variety of color schemes, this neutral bookcase is made of metal, MDF and birch veneer. Featuring six shelves of this horizontal bookcase media tower. Providing ample room for storage and display. Assembly Required. Dimensions: 72.125 high x 18.11 deep x 40 wide inches.
Product feature: Stylish, sleek and practical, this elegant rustic bookcase is a welcome addition to any contemporary home, Suitable for a variety of color schemes, this neutral bookcase is made of metal, MDF and birch veneer., Featuring six shelves of this horizontal bookcase media tower., Providing ample room for storage and display., Assembly Required. Dimensions: 72.125 high x 18.11 deep x 40 wide inches. Bonus pen will be sent separately.
Product price: $363.99
Product brand: ModHaus Living
Target attributes: Style
Answer: attribute: style
value: None
source: None