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: Jefferies Socks Girls' Daisy Anklet Socks 2 Pair Pack
Product description: These socks come just above the ankle with a scalloped edge detail. Size toddler has no-slip nonskids on the bottom of the socks.
Product feature: 81% Cotton, 16% Nylon, 3% Spandex, Imported, Machine Wash, Anklet length comes just above the ankle, Scalloped sock top, Only size toddler has no-slip nonskids on the bottom of the socks, Cotton rich, See size chart for detailed sizing information, Package Dimensions: 3.3 x 3.3 x 1.2 inches, Shipping Weight: 0.32 ounces, ASIN: B014MNA4CE, Item model number: 2753, Date first listed on Amazon: October 31, 2015, Average Customer Review: 3.9 out of 5 stars 2 customer reviews
Target attributes: Age Group
Answer: attribute: age group
value: toddler
source: product description
attribute: age group
value: 3
source: product feature
attribute: age group
value: 2
source: product title
attribute: age group
value: 2
source: product feature
attribute: age group
value: toddler
source: product feature