Instruction: Using the product's title, description, features, price, and brand, identify and retrieve the values associated with a specified set of target attributes. Output the extracted values along with their respective sources (e.g., title or feature) indicating where each value was found.

Input:
Product title: Sterling Baby by Vitamins Baby-Boys Newborn Star Print 3 Pack Hats
Product description: Adorable assortment of 3 hats includes a solid, stripe and all over star print to keep baby warm and toasty.
Product feature: 100% Cotton, Imported, Machine Wash, Soft cotton fabric, Fold over cap, Package Dimensions: 1 x 1 x 1 inches, Shipping Weight: 1 pounds, ASIN: B00LX4ZYK8, Item model number: SY1304, Date first listed on Amazon: August 14, 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: 5.0 out of 5 stars 1 customer review
Product brand: Sterling Baby by Vitamins
Target attributes: Age Group
Answer: attribute: age group
value: baby
source: product description
attribute: age group
value: baby
source: product brand
attribute: age group
value: baby
source: product title