Simplify the following text for a Grade 10 native English-speaking person.
Original: After that he went through practical training in Salzburg , Geneva , Paris , London and Munich ( in Eckart Witzigmanns three stars awarded Aubergine ) .
Simplified: He did more training in Salzburg , Geneva , Paris , London and Munich as well as Feinkost KÃ fer , Dallmayr and in the Restaurant Aubergine of Eckart Witzigmann .