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: BANBERRY DESIGNS Nurse Christmas Ornament with Message Angel with Hat Charm Inscription: Nurses Heal Your Heart
Product description: Nurses Heal Your Heart Hanging Ornament Angel with Hat Charm. Silver colored metal angel with a Pearl head, ribbon for hanging, and enamel paint in wings and body. Hanging charm is a nurses hat with a cross. Glitter enamel in the charm. Measures 2-1/2"H x 1-3/4"W.
Product feature: NURSES heal your heart is the perfect 'thank you' gift for a nurse, MEASURES 2-1/2"H x 1-3/4"W and has a Ribbon for Hanging, HEART is engraved with "Nurses Heal Your Heart", ALSO PACKAGED with a hanger.....enter nurses 2985 in the Amazon search box, Get free shipping on this item when you spend $49.00 or more on Qualifying Items offered by Relevant Gifts. Here's how (restrictions apply)
Product price: $9.99
Product brand: BANBERRY DESIGNS
Target attributes: Material
Answer: attribute: material
value: metal
source: product description