TASK DEFINITION: In this task, you're given a sentence and your task is to generate a simplified sentence that focuses on lexical paraphrasing from the original sentence given in the input.
PROBLEM: he returns in the 2007 series of doctor who , reuniting with the tenth incarnation of the doctor , and returned again for the 2008 series.

SOLUTION: he comes back in the 2007 series of doctor who , joining again with the tenth embodiment of the doctor , and returns again for the 2008 series.

PROBLEM: in 2006 , phil downing left the band , citing communication problems with other members.

SOLUTION: phil downing left the band in 2006 because he had difficulties talking to the other people in the band.

PROBLEM: baduhennna is solely attested by tacitus ' annals where tacitus records that a grove in frisia was dedicated to her , and that near this grove 900 roman prisoners were killed in 28 ce.

SOLUTION:
baduhennna is solely confirmed by tacitus ' annals , where tacitus wrote that a grove in frisia was dedicated to her , and that near this grove , 900 roman prisoners were killed in 28 ce.