-er -ol b-u bbb bbe bbi bbl bbn bbo bbr bbu be- beb bee bei bel ben beo ber beu bi- bib bie bii bil bin bio bir biu blb ble bli bll bln blo blr blu bnb bne bni bnl bnn bno bnr bnu bob boe boi bol bon boo bor bou brb bre bri brl brn bro brr bru bub bue bui bul bun buo bur buu ebb ebe ebi ebl ebn ebo ebr ebu eeb eee eel een eeo eer eib eie eii eil ein eio eir eiu elb ele eli ell eln elo elr elu en- enb ene eni enl enn eno enr enu eo- eob eoe eoi eol eon eoo eor eou erb ere eri erl ern ero err eru eu- eub eue eui eul eun eur ibb ibe ibi ibl ibn ibo ibr ibu ie- iee iei iel ien ier iib iie iii iil iin iio iir iiu il- ilb ile ili ill iln ilo ilr ilu in- inb ine ini inl inn ino inr inu io- iob ioe ioi iol ion ioo ior iou ir- irb ire iri irl irn iro irr iru iu- iub iue iui iur lbb lbe lbi lbl lbo lbr lbu leb lee lei lel len leo ler leu lib lie lii lil lin lio lir liu llb lle lli lll lln llo llr llu lnb lne lni lnl lnn lno lnr lnu lob loe loi lol lon loo lor lou lrb lri lrn lro lrr lru lub lue lui lul lun luo lur luu n-i nbb nbe nbi nbl nbn nbo nbr nbu ne- neb nee nei nel nen neo ner neu nib nie nii nil nin nio nir niu nlb nle nli nll nln nlo nlr nlu nnb nne nni nnl nnn nno nnu no- nob noe noi nol non noo nor nou nrb nre nri nrl nrn nro nrr nru nub nue nui nul nun nuo nur nuu o-i ob- obb obe obi obl obn obo obr obu oeb oee oei oel oen oeo oer oib oie oii oil oin oio oir oiu olb ole oli oll oln olo olu on- onb one oni onl onn ono onr onu oo- oob ooi ool oon ooo oor or- orb ore ori orl orn oro orr oru ou- oue oui oul oun ouo our rbb rbe rbi rbl rbn rbo rbr rbu re- reb ree rei rel ren reo rer reu rib rie rii ril rin rio rir rle rli rll rln rlo rlr rlu rnb rni rnn rno rnr rnu rob roe roi rol ron roo ror rou rrb rri rrl rrn rrr rru rub rue rui run ruo rur ruu ubb ube ubi ubl ubn ubo ubr ubu ueb uee uei uel uen uer uib uie uii uil uin uio uir uiu ulb ule uli ull uln ulo ulr ulu un- unb une uni unl unn uno unr unu uob uoe uol uon uoo uor ur- urb ure uri url urn uro urr uru uue uun uur uuu