-er a-a a-c aaa aac aae aah aak aao aap aar aav ac- aca acc ace ach ack aco acp acr acv aea aec aee aeh aek aeo aep aer aev aha ahc ahe ahh ahk aho ahp ahr ahv aka akc ake akh akk ako akp akr akv aoa aoc aoe aoh aok aoo aop aor aov ap- apa apc ape aph apk apo app apr apv ar- ara arc are arh ark aro arp arr arv av- ava avc ave avh avk avo avp avr c-- caa cac cae cah cak cao cap car cav cca ccc cce cch cck cco ccp ccr ccv ce- cea cec cee ceh cek ceo cep cer cev ch- cha chc che chh chk cho chp chr chv cka ckc ckh cko co- coa coc coe coh cok coo cop cor cov cpa cpc cpe cph cpk cpo cpp cpr cpv cra crc cre crh crk cro crp crr crv cva cvc cve cvh cvk cvo cvp cvr cvv eaa eac eae eah eak eao eap ear eav ec- eca ecc ece ech eck eco ecr ecv eea eec eee eek eeo eep eer eev eha ehc ehe ehh eho ehp ehr ehv eka ekc eke ekh eko ekp ekr ekv eo- eoa eoc eoe eoh eok eoo eop eor ep- epa epc epe eph epo epp epr era erc ere erh erk ero erp err erv eva evc eve evh evo evp evr evv haa hac hae hah hak hao hap har hav hca hcc hce hch hck hco hcp hcr hcv he- hea hec hee heh hek heo hep her hev hha hhc hhe hhh hhk hho hhp hhr hhv hka hkh hkk hko hkp hkr hoa hoc hoe hoh hok hoo hop hor hov hpa hpc hpe hph hpk hpo hpp hpr hpv hr- hra hrc hre hrh hrk hro hrp hrr hrv hv- hva hvc hvk hvo hvp hvr hvv ka- kaa kac kae kah kak kao kap kar kav kca kcc kce kch kck kcp kcr ke- kea kec kee keh kek keo kep ker kev kha khe khh khk kho khr khv kkc kke kkh kkk kkp kkr kkv koa koc koe koh kok koo kop kor kpa kpc kpe kph kpk kpo kpp kpr kpv kra krc krk kro krp krr krv kva kvh kvk kvo kvp kvr kvv oaa oac oae oah oak oao oap oar oav oc- oca occ och ock oco ocp ocr ocv oea oec oee oeh oeo oep oer oha ohc ohe ohh oho ohp ohr oka okc oke okk oko okp okr oo- ooa ooc ooh ook ooo oop oor oov op- opa opc ope oph opk opo opp opr opv or- ora orc ore orh ork oro orp orr orv ov- ova ovc ove ovh ovo ovp ovv p-p paa pac pae pah pak pao pap par pav pca pcc pce pch pck pco pcp pcr pcv pea pec pee peh pek peo pep per pev pha phc phe phk pho php phr phv pka pkc pke pko pkp pkr poa poc poe poh pok poo pop por pov ppa ppc ppe pph ppk ppo ppp ppr ppv pra prc pre prh prk pro prp prr prv pva pvc pve pvh pvk pvo pvp pvr pvv ra- raa rac rae rah rak rao rap rar rav rca rcc rce rch rco rcp rcr rcv re- rea rec ree reh rek reo rep rer rev rh- rha rhc rhe rhh rho rhp rhr rhv rkc rke rkk rko rkp rkv roa roc roe roh rok roo rop ror rov rpa rpc rpe rph rpk rpo rpp rpr rpv rra rrc rrh rrk rrp rrr rva rvc rve rvh rvo rvp rvr rvv v-a v-e vaa vac vae vah vak vao vap var vav vca vcc vce vch vco vcp vcr vea vec vee veh vek veo vep ver vh- vha vhc vhe vho vhp vka vkp voa voc voe voh vok voo vop vor vov vpa vpc vpe vph vpk vpo vpp vpr vra vrc vre vrh vrk vrp vrr vva vvc vvo vvr vvv