    Sentence. 1; Trevor: Fetter :.. who:  returned. to. Tenet.’as: president. last  November., has..been appoirited. ds.  acting CEO , the company’ said ++    Sentence’: °2: “The”: board: has:  appointed: “Trevor... Fetter. 3: “who  returned: “ta.” the.” .cornpany. as.  president last’ November, a8 acting