Task: Text Simplification
Input (English): backstory the general plot of the game is that a team of four , an alien , a human , an android , and a psionic , have left earth aboard a spacecraft on the basis of the planet 's imminent destruction.
Output (English): -lrb- story about a person or thing 's history -rrb- the general plot of the game is that a team of four , an alien , a human , an android , and a psionic , have left earth -lrb- on a train , plane , etc . -rrb- a spacecraft on the basis of the planet 's happening soon destruction.