Instruction: Extract the value of the target attribute from the given product information and output it along with the corresponding source.

Input:
Product title: Trustmark 14K Yellow Gold 10mm Natural Blue Lapis Lazuli Ball Stud Post Earrings
Product description: Beautiful 10mm Natural Lapis Lazuli Ball Stud Earrings on solid 14K Yellow Gold posts. Experience the class, beauty and elegance of Natural Lapis Lazuli with it's Cobalt to Navy Blue colors. Simply gorgeous and always in style.
Product feature: Made with Natual Lapis Lazuli, Features our bold 10mm size which is about 4/10 of an inch., Metal Components:Solid 14K Yellow Gold. Hallmarked., Professionally hand-set in our own US studio., Style or Setting:Cup post for Pierced Ears., Product Dimensions: 3 x 2 x 1 inches, Shipping Weight: 0.32 ounces ( View shipping rates and policies ), ASIN: B007P7B8NE, Item model number: LL10mm-B14, Date first listed on Amazon: March 27, 2012, Average Customer Review: 3.0 out of 5 stars 1 customer review
Product price: $48.99
Product brand: 1000 Jewels
Target attributes: Silhouette
Answer: attribute: silhouette
value: stud
source: product description
attribute: silhouette
value: stud
source: product title