Simplify the following text for a Grade 5 native English-speaking person.
Original: In the United States and Canada , corned beef typically comes in two forms , a cut of beef ( usually brisket , but sometimes round or silverside ) cured or pickled in a seasoned brine , and canned ( cooked ) .
Simplified: Corned beef is a cut of beef that has been pickled or cured in brine .