Simplify the following text for a Grade 10 native English-speaking person.
Original: A good example of this strategy is Electronic Arts , which has closed many studios while keeping their copyrights and trademarks , such as Bullfrog Productions , Origin Systems , and Westwood Studios .
Simplified: A good example of this strategy is Electronic Arts . They have closed many studios while keeping their copyrights and trademarks , such as Bullfrog Productions , Origin Systems , and Westwood Studios .