Quadgrams Part 16

vers rest call chan ativ llow ined pers essi ving pers chan vers rest essi call llow ving ativ ined essi llow vers call ving ativ pers ined chan rest llow ving vers ativ call chan essi ined pers rest ving ativ rest llow chan ined call essi vers pers call ving pers chan vers llow ined rest essi ativ ving essi vers llow pers ativ chan rest call ined vers ined chan essi rest pers call llow ving ativ essi llow pers ined rest vers chan ving ativ call ativ call ined essi chan rest pers vers llow ving