-er -ol eee eek eel eeo eer eet eev eex eie eii eik eil eio eir eit eiv eix eke eki ekl eko ekr ekt ekv ele eli elk ell elo elr elt elv elx eo- eoe eoi eok eol eoo eor eot ere eri erk erl ero err ert erv ete eti etk etl eto etr ett etv etx eve evi evl evo evr evt evv ex- exe exi exl exo exr ext exx i-v ie- iee iei iek iel ier iet iev iex iie iii iil iio iir iit iix ike iki ikk ikl iko ikr ikt ikv ikx il- ile ili ilk ill ilo ilr ilt ilv ilx io- ioe ioi iol ioo ior iot iov ir- ire iri irk irl iro irr irt irv irx ite iti itk itl ito itt itv itx ive ivi ivl ivo ivr ivt ivv ivx ixe ixi ixl k-t ke- kee kei kek kel keo ker ket kev kex kie kii kik kil kio kir kit kiv kix kke kki kkk kkl kkr kkt kkv kl- kli klo klr klt klv klx koe koi kok kol koo kor kot kri krk krl kro krr krt krv kte ktk ktl kto ktr ktt ktv kvi kvk kvo kvr kvv kxl kxo lee lei lek lel leo ler let lev lex lie lii lik lil lio lir lit liv lix lkl lkr lkt lle lli llk lll llo llr llt llv loe loi lok lol loo lor lot lov lox lri lrk lro lrr lrt lrv lte lti ltk ltl lto ltr ltt ltv ltx lve lvi lvl lvr lvt lvv lvx lxi lxo lxr lxv lxx o-i oee oei oel oeo oer oet oex oie oii oik oil oio oir oit oiv oke oki okk okl oko okr ole oli olk oll olo olt oo- ooi ook ool ooo oor oot oov oox or- ore ori ork orl oro orr ort orv orx ot- ote oti otk otl oto otr ott otv ov- ove ovi ovl ovo ovv ox- oxi oxo oxt oxx re- ree rei rek rel reo rer ret rev rex rie rii rik ril rio rir rit riv rix rke rkk rko rkt rkv rle rli rll rlo rlr rlt roe roi rok rol roo ror rot rov rox rri rrk rrl rrr rrt rte rti rtk rtl rto rtr rtt rtv rtx rve rvi rvl rvo rvr rvt rvv rxr t-x te- tee tei tek tel teo ter tet tev tex tie tii tik til tio tir tit tiv tix tke tkk tkl tko tkr tkt tle tli tlk tll tlo tlr tlt tlv tlx to- toe toi tok tol too tor tot tov tox tre tri trk trl tro trr trt trv trx tte tti ttk ttl tto ttr ttt ttv ttx tve tvi tvk tvl tvo tvr tvt tvx txe txi txk txl txt v-e vee vei vek vel veo ver vet vex vi- vie vii vik vil vio vir vit viv vix vkt vl- vle vlk vll vlo vlt vlv voe voi vok vol voo vor vot vov vox vre vri vrk vrr vrt vte vti vtk vtl vto vtr vtt vtv vtx vvi vvo vvr vvt vvv vxl vxr vxv xee xel xer xet xev xex xie xii xio xit xiv xix xke xkl xli xlr xlt xlv xoi xok xoo xor xot xov xox xrt xrx xti xtr xtv xtx xvi xvl xvt xxi xxl xxo xxv xxx