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: Badgley Mischka Collection Women's Halter Odessa Gown
Product description: The perfect combination of simplicity and style. The stretch fabric is comfortable, but sexy. This gown is an ode to old Hollywood glamour.
Product feature: 98% Polyester, 2% Spandex, Imported, Dry Clean Only, Stretch fit, Center back zipper, Package Dimensions: 19.3 x 9.3 x 3.7 inches, Shipping Weight: 1.75 pounds, ASIN: B00P005JTW, Item model number: EG4057B, Date first listed on Amazon: November 5, 2014, Average Customer Review: 5.0 out of 5 stars 1 customer review
Target attributes: Length
Answer: attribute: length
value: gown
source: product title
attribute: length
value: gown
source: product description