perl[8], bels[7], pers[7], reps[7], lern[5], rens[4],
bel[6], leb[6], per[6], rep[6], pes[6], erb[5], les[4], ern[3], ren[3], sen[3], ers[3], res[3],
ne[2], er[2], re[2], es[2],
