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: Forever Link BACK ZIPPER OPEN TOE FAUX LEATHER CASUAL KNEE HIGH GLADIATOR SANDALS
Product description: These knee high sandals feature a back zipper, open toe style, lace accent look, faux leather, Great for that casual look.
Product feature: Synthetic, Synthetic sole, Faux Leather, Imported, All man made material, True to Size, Shipping Weight: 5 pounds ( View shipping rates and policies ), ASIN: B01A9DW5CI, Item model number: fk1-katia-4, Date first listed on Amazon: January 6, 2016, Average Customer Review: 3.7 out of 5 stars 48 customer reviews
Product price: $28.99 - $34.95
Product brand: Lolli Couture
Target attributes: Type
Answer: attribute: type
value: sandals
source: product title
attribute: type
value: sandals
source: product description