Instruction: Extract the value of the target attribute from the given product information and output it along with the corresponding source.

Input:
Product title: Dell Optiplex MY6TM Desktop(Black)
Product description: Get the job done with business-ready desktop offering superb value with strong performance, exceptional security and easy serviceability.
Product feature: Power through challenging jobs with Intel Core i3 Processor, Efficiently multitask, Easily run multiple applications simultaneously, Boost performance and support dual monitors with integrated Intel graphics, Ensure authorized access through multifactor, single sign-on (sso)
Product price: $23.75
Product brand: Dell
Target attributes: Processor Speed
Answer: attribute: processor speed
value: None
source: None