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

Input:
Product title: ecko unltd. Men's The Crossing Polo
Product feature: 100% Cotton, Imported, Hand Wash, Ribbed polo collard, Buttoned placket, Package Dimensions: 10.1 x 5.6 x 1.8 inches, Shipping Weight: 8.8 ounces, ASIN: B00ID9ZA32, Item model number: 03472, Date first listed on Amazon: April 17, 2014, Domestic Shipping: Item can be shipped within U.S., International Shipping: This item is not eligible for international shipping. Learn More, Average Customer Review: 4.6 out of 5 stars 4 customer reviews
Target attributes: Neckline
Answer: attribute: neckline
value: polo collar
source: product feature
attribute: neckline
value: polo
source: product title