-er -ol bbb bbe bbi bbl bbn bbo bbr be- beb bee bei bel ben beo ber bez bi- bib bie bii bil bin bio bir biz blb ble bli bll bln blo blr blz bnb bne bni bnl bnn bno bnr bnz bob boe boi bol bon boo bor boz brb bre bri brl brn bro brr brz bze bzn bzo bzr bzz ebb ebe ebi ebl ebn ebo ebr eeb eee eel een eeo eer eib eie eii eil ein eio eir elb ele eli ell eln elo elr elz en- enb ene eni enl enn eno enr enz eo- eob eoe eoi eol eon eoo eor erb ere eri erl ern ero err erz eze ezo ezr ezz ibb ibe ibi ibl ibn ibo ibr ibz ie- iee iei iel ien ier iib iie iii iil iin iio iir il- ilb ile ili ill iln ilo ilr ilz in- inb ine ini inl inn ino inr io- iob ioe ioi iol ion ioo ior ir- irb ire iri irl irn iro irr ize izi izo izz lbb lbe lbi lbl lbo lbr leb lee lei lel len leo ler lez lib lie lii lil lin lio lir liz llb lle lli lll lln llo llr llz lnb lne lni lnl lnn lno lnr lob loe loi lol lon loo lor loz lrb lri lrn lro lrr lrz lzi lzo lzr n-i nbb nbe nbi nbl nbn nbo nbr ne- neb nee nei nel nen neo ner nez nib nie nii nil nin nio nir niz nlb nle nli nll nln nlo nlr nlz nnb nne nni nnl nnn nno nnz no- nob noe noi nol non noo nor noz nrb nre nri nrl nrn nro nrr nrz nzb nze nzi nzo nzz o-i ob- obb obe obi obl obn obo obr oeb oee oei oel oen oeo oer oib oie oii oil oin oio oir oiz olb ole oli oll oln olo on- onb one oni onl onn ono onr oo- oob ooi ool oon ooo oor or- orb ore ori orl orn oro orr orz oze ozo ozz rbb rbe rbi rbl rbn rbo rbr re- reb ree rei rel ren reo rer rez rib rie rii ril rin rio rir riz rle rli rll rln rlo rlr rnb rni rnn rno rnr rnz rob roe roi rol ron roo ror roz rrb rri rrl rrn rrr rzb rze rzo zbb zbl zbr zeb zee zel zen zeo zer zez zib zie zil zin zio zir ziz zlr zne znn zno zo- zob zoe zoi zol zon zoo zor zrl zro zzr zzz