Simplify the following text for a Grade 8 native English-speaking person.
Original: Ethan Zohn , Lex van den Berghe , and Tom `` Big Tom '' Buchanan competed in Survivor : All-Stars , where they placed 11th , 9th , and 5th respectively .
Simplified: Ethan Zohn , Lex van den Berghe , and Tom `` Big Tom '' Buchanan returned in Survivor : All-Stars , where they placed 11th , 9th , and 5th .