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: Lorren Home Trends 84-Piece 18/10 Mirror Finish Flatware Set
Product description: 84-Piece flatware set-18/10 stainless steel flatware-service for 12 persons. 5-Piece place setting plus all the serving-Pieces included. modern style with square bottoms. high polished stainless steel finish. keep flatware safe with this leather storage case that is included ($40.00 value). set includes: 12-dinner forks, 12-dinner knives, 12-dinner spoons, 12-tea spoons, 12-dessert forks, 12-espresso spoons 1-large ladle, 1-gravy ladle, 1-ice tong, 2pc. salad set, 1-pie server, 2-olive forks, 1-sugar spoon, 2-serving spoons, 1-mini serving spoon.
Product feature: Free Storage Case Valued at $40.00, High Polished 18/10 Stainless Steel, Dishwasher Safe Flatware, Serving pieces included to give your table a complete style, Elegant and stylish design to coordinate with any dcor, Free storage case valued at $40.00, High polished 18/10 stainless steel, Dishwasher safe flatware, Serving-Pieces included to give your table a complete style, Elegant and stylish design to coordinate with any dcor
Product brand: Lorren Home Trends
Target attributes: Material
Answer: attribute: material
value: stainless steel
source: product feature
attribute: material
value: 18/10
source: product title
attribute: material
value: stainless steel
source: product description