eee eek eeo eep ees eet eev eke eko ekp eks ekt ekv eo- eoe eok eoo eop eos eot ep- epe epo epp eps ept es- ese esk eso esp ess est esv ete etk eto etp ets ett etv eve evo evp evs evt evv k-t ke- kee kek keo kep kes ket kev kke kkk kkp kks kkt kkv koe kok koo kop kos kot kpe kpk kpo kpp kps kpt kpv kse ksk kso ksp kss kst ksv kte ktk kto ktp kts ktt ktv kvk kvo kvp kvs kvv oee oeo oep oes oet oke okk oko okp oks oo- ook ooo oop oos oot oov op- ope opk opo opp ops opt opv os- ose osk oso osp oss ost osv ot- ote otk oto otp ots ott otv ov- ove ovo ovp ovs ovv p-p pee pek peo pep pes pet pev pke pko pkp pks pkt poe pok poo pop pos pot pov ppe ppk ppo ppp pps ppt ppv ps- pse psk pso psp pss pst psv pt- pte ptk pto ptp pts ptt ptv pve pvk pvo pvp pvs pvt pvv se- see sek seo sep ses set sev sk- ske skk sko skp sks skt soe sok soo sop sos sot sov spe spk spo spp sps spt spv ss- sse ssk sso ssp sss sst ssv ste stk sto stp sts stt stv sve svk svo svp svs svt svv te- tee tek teo tep tes tet tev tke tkk tko tkp tks tkt to- toe tok too top tos tot tov tpe tpk tpo tpp tps tpt tpv tse tsk tso tsp tss tst tsv tte ttk tto ttp tts ttt ttv tve tvk tvo tvp tvs tvt v-e vee vek veo vep ves vet vkp vkt voe vok voo vop vos vot vov vpe vpk vpo vpp vps vpt vse vsk vso vsp vss vst vsv vte vtk vto vts vtt vtv vvo vvs vvt vvv