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: 3dRose orn_166829_1 I Believe in Robotics Cute Believer Design Snowflake Ornament, Porcelain, 3-Inch
Product description: I Believe In Robotics Cute Believer Design Ornament is a perfect addition to your tree or as a window decoration. This glossy porcelain ornament is a great gift for family and friends, commemorating each holiday or special occasion. Image printed on both sides; measures 3 Inch. A strand of gold thread makes it easy to display this fantastic keepsake.
Product feature: High gloss finish, Overall size is 3 Inch, Image printed on both sides, Gold string included for easy hanging, Great keepsake to commemorate any special occasion, Get free shipping on this item when you spend $99.00 or more on Qualifying items offered by 3dRose LLC. Here's how (restrictions apply), Purchase: 15 items and receive 5% off; 20 items and receive 7% off; 25 items and receive 10% off; 50 items and receive 15% off; 100 or more items and receive 20% off. Items may differ. Here's how (restrictions apply)
Product price: $12.75
Product brand: 3dRose
Target attributes: Material
Answer: attribute: material
value: porcelain
source: product title
attribute: material
value: porcelain
source: product description