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: Silver Gate Women's Sleeveless Halter Multiple Spaghetti Straps Back Maxi Dress
Product description: Solid rayon jersey sleeveless halter maxi with open back detail with multiple spaghetti straps. Unique and fun dress that is definitely one of a kind., CONTENTS + CARE, Shell: 95% Rayon 5% Spandex Lining: 100% Polyester Machine wash cold, Small: Bust 13" | Waist 12 1/2" | Length 54 1/4" Medium: Bust 14" | Waist 13 1/2" | Length 54 1/2" Large: Bust 15" | Waist 14 1/2" | Length 54 3/4" Model is 5' 11" and wearing a Small., Imported
Product feature: Solid rayon jersey sleeveless halter maxi with open back detail with multiple spaghetti straps. Unique and fun dress that is definitely one of a kind., Shell: 95% Rayon 5% Spandex, Machine wash cold, Imported, Please see Product Description below for additional item information., Product Dimensions: 10 x 10 x 1 inches, Shipping Weight: 1 pounds, ASIN: B01CT1UJFS, Item model number: IDA423RNSCBMD, Date first listed on Amazon: March 10, 2016, Average Customer Review: 4.2 out of 5 stars 6 customer reviews
Product brand: Silver Gate
Target attributes: Length
Answer: attribute: length
value: maxi
source: product feature
attribute: length
value: maxi dress
source: product title
attribute: length
value: maxi
source: product description