Simplify the following text for a Grade 7 native English-speaking person.
Original: During World War II , Nissel was interned as a `` friendly enemy alien '' on the Isle of Man where he met the violist Peter Schidlof and later the violinist Norbert Brainin .
Simplified: When World War II started Nissel was interned on the Isle of Man . There he met the violinist Peter Schidlof and later Norbert Brainin .