Instruction: Using the product's title, description, features, price, and brand, identify and retrieve the values associated with a specified set of target attributes. Output the extracted values along with their respective sources (e.g., title or feature) indicating where each value was found.

Input:
Product title: Crosman Sector 11 S1WITBKB Witness Protection Pack Spring Airsoft Pistol Kit with BB's/Magazines and Target Trap, Black
Product description: In post-apocalyptic America, law and order has all but vanished in Sector 11 of a ruined city. An elite group of undercover agents is needed to restore order and control. Introducing Sector 11 Airsoft. Inspired by todays most popular video games and movies, it's aimed at introducing the sport to new and nove players. Sector 11 guns can be taken right out of the box and onto the playing field with little to no assembly required and no batteries in most models. Best of all, Sector 11 is affordably priced to give great value and wallet-friendly cost.
Product feature: Shoots 6mm Airsoft BB's - Velocity (fps): 230 BB, Two Sector 11 Witness model airsoft guns, Gun magazines each hold 24 airsoft bb's, Target trap - net collects bb's, No batteries needed, starter pack of ammo included
Product brand: Crosman
Target attributes: Velocity
Answer: attribute: velocity
value: None
source: None