bbb bbe bbi bbl bbm bbt be- beb bee bei bel bem bet bi- bib bie bii bil bim bit blb ble bli bll blm blt bmb bme bmi bml bmm bmt btb bte bti btl btm btt ebb ebe ebi ebl ebm ebt eeb eee eel eem eet eib eie eii eil eim eit elb ele eli ell elm elt em- emb eme emi eml emm emt etb ete eti etl etm ett ibb ibe ibi ibl ibm ibt ie- iee iei iel iem iet iib iie iii iil iim iit il- ilb ile ili ill ilm ilt im- imb ime imi iml imm imt itb ite iti itl itm itt lbb lbe lbi lbl lbm lbt leb lee lei lel lem let lib lie lii lil lim lit llb lle lli lll llm llt lmb lme lmi lml lmm lmt ltb lte lti ltl ltm ltt mbb mbe mbi mbl mbm mbt meb mee mei mel mem met mi- mib mie mii mil mim mit mlb mle mli mll mlm mlt mmb mme mmi mml mmm mmt mtb mte mti mtl mtm mtt tbb tbe tbi tbl tbm tbt te- teb tee tei tel tem tet tib tie tii til tim tit tle tli tll tlm tlt tmb tme tmi tml tmm tmt ttb tte tti ttl ttm ttt