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: Frozen Elsa Anna Toddler 4 pc Cotton Pajamas Set
Product description: Let the storm rage on in these cool Disney Frozen pajamas sets! These toddler baby girls cotton PJ sets feature the lovable sisters, Princess Anna & Elsa the Ice Queen on the first set & the friendly snowman, Olaf on the second. A perfect sleepwear choice for any fan of the hit movie, Frozen!
Product feature: 100% Cotton Fabric, Imported, Machine Wash Cold, Light blue and light purple 2 pack includes two Frozen pajamas sets, Officially licensed Disney Frozen toddler baby girls sleepwear apparel, Frozen pj sets tailored from soft 100% cotton fabric for comfort and durability, 2-pack sets feature two short sleeve pajama tops and matching pajama pants, Fits snug for safety; Adorable graphics of Anna, Elsa, & Olaf; Machine washable; Imported, Product Dimensions: 9 x 2 x 9 inches, Shipping Weight: 0.32 ounces, ASIN: B00TQZO34O, Item model number: FZ017TSL, Date first listed on Amazon: February 18, 2015, Average Customer Review: 4.0 out of 5 stars 2 customer reviews
Target attributes: Age Group
Answer: attribute: age group
value: toddler
source: product description
attribute: age group
value: toddler
source: product title
attribute: age group
value: 4
source: product feature
attribute: age group
value: 2
source: product feature
attribute: age group
value: toddler
source: product feature