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

Input:
Product title: Twisted Women's Ruby Floral Canvas Knotted Toe Ballet Flat
Product description: Ruby Canvas Ballet Flat, Ruby is soft, comfortable, and always in style. Welcome spring and summer with the breezy lightweight ballet flat design in a variety of colors and materials. We recommend ordering one size down to find your perfect fit!, About Twisted Shoes, Whether you're on the lookout for sneakers, boots, flip-flops, or other shoes to perfectly match your wardrobe, Twisted offers versatile and comfortable women's fashion sneakers in all different shapes, sizes, colors, and materials. From classic black and white lace-ups to neon yellow wedge sandals, you can find it all at Twisted. Find your perfect pair with understated chic style. Enjoy playful, standout fashion in both casual and dressy looks - Twisted stays up to date on chic new fashions so you can too. Traveling to the beach? Explore Twisted's vast selection of tasteful sandals and find the perfect pair that suits your needs. Easily find running shoes for the gym or outdoors by browsing Twisted's cool and funky styles. Prepare for more formal events and jazz up your wardrobe with woman's dress shoes.
Product feature: Canvas, Imported, Synthetic sole, Canvas Upper, Pop Floral Insole, Cushioned Footbed, Extra Light, FREE SHIPPING FOR PRIME MEMBERS, Package Dimensions: 11.5 x 5 x 4 inches, Shipping Weight: 1 pounds ( View shipping rates and policies ), ASIN: B07BZLS7XL, Date first listed on Amazon: February 13, 2015, Average Customer Review: 3.3 out of 5 stars 239 customer reviews
Target attributes: Silhouette
Answer: attribute: silhouette
value: ballet
source: product title
attribute: silhouette
value: ballet
source: product description
attribute: silhouette
value: flat
source: product description