Instruction: Parse the product information to locate the target attribute, and then provide the extracted value of the target attribute and its source in the output, specifying None if the attribute is not present.

Input:
Product title: Floral Bamboo Print V Neck Plus Size Maxi Long Sundress
Product description: soft and stretchy plus size sundress easy to put on 100% brand new and high quality fits many occasions like party and casual
Product feature: Imported, Floral Bamboo Print V Neck Plus Size Maxi Long Sundress, ASIN: B00VZIYWFU, Date first listed on Amazon: April 12, 2015, Average Customer Review: 3.5 out of 5 stars 2 customer reviews
Product brand: Unknown
Target attributes: Length
Answer: attribute: length
value: maxi
source: product feature
attribute: length
value: maxi
source: product title