-er bbb bbe bbi bbl bbm bbr be- beb bee bei bel bem ber bi- bib bie bii bil bim bir blb ble bli bll blm blr bmb bme bmi bml bmm bmr brb bre bri brl brm brr ebb ebe ebi ebl ebm ebr eeb eee eel eem eer eib eie eii eil eim eir elb ele eli ell elm elr em- emb eme emi eml emm emr erb ere eri erl erm err ibb ibe ibi ibl ibm ibr ie- iee iei iel iem ier iib iie iii iil iim iir il- ilb ile ili ill ilm ilr im- imb ime imi iml imm ir- irb ire iri irl irm irr lbb lbe lbi lbl lbm lbr leb lee lei lel lem ler lib lie lii lil lim lir llb lle lli lll llm llr lmb lme lmi lml lmm lmr lrb lri lrm lrr m-r mbb mbe mbi mbl mbm mbr meb mee mei mel mem mer mi- mib mie mii mil mim mir mlb mle mli mll mlm mlr mmb mme mmi mml mmm mmr mrb mre mri mrl mrm mrr rbb rbe rbi rbl rbm rbr re- reb ree rei rel rem rer rib rie rii ril rim rir rle rli rll rlm rlr rmb rme rmi rml rmm rmr rrb rri rrl rrm rrr