-er a-a a-c aaa aac aae aah aak aar aau aav ac- aca acc ace ach ack acr acu acv aea aec aee aeh aek aer aeu aev aha ahc ahe ahh ahk ahr ahu ahv aka akc ake akh akk akr aku akv ar- ara arc are arh ark arr aru arv au- aua auc aue auh auk aur auv av- ava avc ave avh avk avr avu c-- caa cac cae cah cak car cau cav cca ccc cce cch cck ccr ccu ccv ce- cea cec cee ceh cek cer ceu cev ch- cha chc che chh chk chr chu chv cka ckc ckh cra crc cre crh crk crr cru crv cua cuc cue cuh cuk cur cuu cuv cva cvc cve cvh cvk cvr cvu cvv eaa eac eae eah eak ear eau eav ec- eca ecc ece ech eck ecr ecu ecv eea eec eee eek eer eev eha ehc ehe ehh ehr ehu ehv eka ekc eke ekh ekr eku ekv era erc ere erh erk err eru erv eu- eua euc eue eur euv eva evc eve evh evr evv haa hac hae hah hak har hau hav hca hcc hce hch hck hcr hcv he- hea hec hee heh hek her heu hev hha hhc hhe hhh hhk hhr hhu hhv hka hkh hkk hkr hku hr- hra hrc hre hrh hrk hrr hru hrv hua huc hue huh huk hur huu huv hv- hva hvc hvk hvr hvv ka- kaa kac kae kah kak kar kau kav kca kcc kce kch kck kcr kcu ke- kea kec kee keh kek ker kev kha khe khh khk khr khu khv kkc kke kkh kkk kkr kku kkv kra krc krk krr kru krv kuc kue kuh kuk kur kuu kva kvh kvk kvr kvv ra- raa rac rae rah rak rar rau rav rca rcc rce rch rcr rcu rcv re- rea rec ree reh rek rer reu rev rh- rha rhc rhe rhh rhr rhu rhv rkc rke rkk rku rkv rra rrc rrh rrk rrr rru rua ruc rue ruh ruk rur ruu ruv rva rvc rve rvh rvr rvu rvv ua- uaa uac uae uah uak uar uau uav uca ucc uce uch uck ucr ucu ucv uea uec uee ueh uer uha uhc uhe uhh uhr uhu uhv uka ukc uke ukk ukr uku ur- ura urc ure urk urr uru uua uuc uue uur uuu uva uvc uve uvu uvv v-a v-e vaa vac vae vah vak var vau vav vca vcc vce vch vcr vcu vea vec vee veh vek ver veu vh- vha vhc vhe vka vra vrc vre vrh vrk vrr vru vue vuk vur vuv vva vvc vvr vvv