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: 24-7 P/C R/S EMS Pants, 1" Height, 14" Width, W: 28 Large: Unhemmed, Navy
Product description: Our true-spec 24/7 EMS pants are styled exactly like our 24/7 tactical pants with added features with the emergency medical Personnel in mind., Not Applicable
Product price: $23.35
Product brand: TRU-SPEC 24-7
Target attributes: Pattern
Answer: attribute: pattern
value: None
source: None