-er -ol b-u bbb bbe bbi bbl bbn bbo bbr bbu be- beb bee bei bel ben beo ber beu bev bi- bib bie bii bil bin bio bir biu biv blb ble bli bll bln blo blr blu blv bnb bne bni bnl bnn bno bnr bnu bnv bob boe boi bol bon boo bor bou bov brb bre bri brl brn bro brr bru brv bub bue bui bul bun buo bur buu bvb bve bvi bvl bvn bvo bvr bvu bvv ebb ebe ebi ebl ebn ebo ebr ebu ebv eeb eee eel een eeo eer eev eib eie eii eil ein eio eir eiu eiv elb ele eli ell eln elo elr elu elv en- enb ene eni enl enn eno enr enu env eo- eob eoe eoi eol eon eoo eor eou erb ere eri erl ern ero err eru erv eu- eub eue eui eul eun eur euv evb eve evi evl evn evo evr evv i-v ibb ibe ibi ibl ibn ibo ibr ibu ibv ie- iee iei iel ien ier iev iib iie iii iil iin iio iir iiu il- ilb ile ili ill iln ilo ilr ilu ilv in- inb ine ini inl inn ino inr inu inv io- iob ioe ioi iol ion ioo ior iou iov ir- irb ire iri irl irn iro irr iru irv iu- iub iue iui iur ivb ive ivi ivl ivo ivr ivu ivv lbb lbe lbi lbl lbo lbr lbu lbv leb lee lei lel len leo ler leu lev lib lie lii lil lin lio lir liu liv llb lle lli lll lln llo llr llu llv lnb lne lni lnl lnn lno lnr lnu lob loe loi lol lon loo lor lou lov lrb lri lrn lro lrr lru lrv lub lue lui lul lun luo lur luu luv lvb lve lvi lvl lvn lvr lvv n-i nbb nbe nbi nbl nbn nbo nbr nbu nbv ne- neb nee nei nel nen neo ner neu nev nib nie nii nil nin nio nir niu niv nlb nle nli nll nln nlo nlr nlu nlv nnb nne nni nnl nnn nno nnu nnv no- nob noe noi nol non noo nor nou nov nrb nre nri nrl nrn nro nrr nru nrv nub nue nui nul nun nuo nur nuu nuv nvb nve nvi nvl nvn nvu nvv o-i ob- obb obe obi obl obn obo obr obu obv oeb oee oei oel oen oeo oer oib oie oii oil oin oio oir oiu oiv olb ole oli oll oln olo olu on- onb one oni onl onn ono onr onu oo- oob ooi ool oon ooo oor oov or- orb ore ori orl orn oro orr oru orv ou- oue oui oul oun ouo our ov- ovb ove ovi ovl ovo ovv rbb rbe rbi rbl rbn rbo rbr rbu re- reb ree rei rel ren reo rer reu rev rib rie rii ril rin rio rir riv rle rli rll rln rlo rlr rlu rnb rni rnn rno rnr rnu rnv rob roe roi rol ron roo ror rou rov rrb rri rrl rrn rrr rru rub rue rui run ruo rur ruu ruv rvb rve rvi rvl rvn rvo rvr rvu rvv ubb ube ubi ubl ubn ubo ubr ubu ubv ueb uee uei uel uen uer uib uie uii uil uin uio uir uiu ulb ule uli ull uln ulo ulr ulu ulv un- unb une uni unl unn uno unr unu unv uob uoe uol uon uoo uor ur- urb ure uri url urn uro urr uru uue uun uur uuu uvb uve uvl uvo uvu uvv v-e vbi vbl vbo vbr vbv veb vee vei vel ven veo ver veu vi- vib vie vii vil vin vio vir viu viv vl- vlb vle vll vlo vlv vn- vni vnl vno vnr vnu vnv vob voe voi vol von voo vor vou vov vrb vre vri vrn vrr vru vue vul vur vuv vvb vvi vvo vvr vvv