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: White Linen Tapered Drum Lampshade - 16"
Product description: This lampshade is handcrafted using traditional, labor intensive manufacturing techniques and the finest linen. It features a hand-rolled edge, 14 pt polystyrene backing, and a spider fitting dropped from the top of the shade. This fitting allows the shade to attach to any lamp with a harp. The lampshade is 11 (top) x 16 (bottom) x 11 (slant), pictured on a lamp base that is 16.5" tall and 8" wide. Included in your purchase is an adjustable brass harp--which can be adjusted in height from 8" to 12" to ensure a perfect fit to your lamp--as well as a brass finial (an added $20 value). Design and Deliver is the leading provider of replacement and custom lampshades for high-end residential, commercial and private label customers. For over a decade, we have been honored to produce lampshades for some of the finest homes, hotels, and resorts in the world. The majority of our business serves the interior design community exclusively, but on Amazon.com you will find a collection of shades curated especially for you.
Product feature: 11" top x 16" bottom x 11" slant, High quality linen laminated on 14 point polystyrene, Washer/Spider fitting allows this shade to attach to any lamp with a harp, hand-rolled edge, Matching brass adjustable harp (adjusts from 8" to 12") and finial included
Product price: $37.00
Product brand: Design and Deliver
Target attributes: Shape
Answer: attribute: shape
value: drum
source: product title