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: Paper Mate Flair Ultra Fine Tip Felt Porous Pens, 2 Black Pens (1733550)
Product description: Ultra Fine tip provides precise lines and won't bleed through paper when writing.
Product feature: Felt tip provides bold and expressive lines great for editing documents and papers, Point Guard tip prevents fraying, Quick-drying ink prevents smearing and your writing won't bleed through paper, Click-seal cap with clip prevents dry out, Set of 2 Ultra Fine Black Pens
Product brand: Paper Mate
Target attributes: Type
Answer: attribute: type
value: porous
source: product title
attribute: type
value: felt tip
source: product feature