Instruction: Given the title, description, feature, price, and brand of a product and a set of target attributes, extract the value of each target attribute from the product information. Output the extracted value and the corresponding source (e.g., title or feature) denoting where the value is extracted.

Input:
Product title: GT Legends
Product description: GT Legends brings back the legendary spirit of the classic muscle car era. It features all the legends of classic car racing -- from the famous Mini Cooper team to the muscular Corvette Stingray team. Collect more then 90 original FiA GTC-TC team vehicles and demonstrate your driving skill on real European racetracks. Completely authentic sounds recorded from the actual FIA racing cars In Multiplayer Mode, you'll impress your friends with rare unlockable cars, as you challenge up to 15 opponents online
Product feature: Over 25 variations of real tracks like Imola, Monza, Donington and Mondello Park, 5 Difficulty levels, ranging from the easy Beginner Mode to the Ultra-realistic Simulation Mode, Win numerous cups and buy your dream car in challenging Career Mode, Experience unequalled levels of realism, including pit stops and car setups, Leading-edge graphics technology enables spectacular special effects and dynamic day & night cycles
Product price: $4.99
Product brand: Take 2 Interactive
Target attributes: ESRB Rating
Answer: attribute: esrb rating
value: None
source: None