Instruction: Given the title, description, feature, price, and brand of a product and a set of target attributes, extract the value of each target attribute from the product information. Output the extracted value and the corresponding source (e.g., title or feature) denoting where the value is extracted.

Input:
Product title: Sibba Casual Suede Round Toe Women's Ballet Flat Suede Slip On Flats Black
Product description: Ballet style, Vinyl, Great for the office, travel, nightlife, maternity, dancing and much more.., Pouch measures. Lose the pumps and throw on these stylish yet comfortable Sidekick foldable flats.?Accessorize the clutch with your outfit or easily fit it in your purse for the night. Our new collection of flats is far from dowdy and boring. From classic ballet flats in strong vivid fun colors to wild animal print skimmers, our collection of flats can complement your outfits just as much as heels and other styles of shoes. Most importantly, they are easy on the feet.
Product feature: lambskin, Synthetic sole, Lambskin leather upper, Heel measures approximately 0.25", Lightly padded footbed, Flexible TPR outsole, Elasticized top line, Product Dimensions: 12 x 5.7 x 3.8 inches, Shipping Weight: 14.1 ounces ( View shipping rates and policies ), ASIN: B0194Z24C8, California residents: Click here for Proposition 65 warning, Item model number: USAY54733, Date first listed on Amazon: December 9, 2015, Average Customer Review: 3.0 out of 5 stars 12 customer reviews
Product brand: Sibba
Target attributes: Toe Style
Answer: attribute: toe style
value: round toe
source: product title