-er a-a aaa aae aag aak aar aau aav aea aee aeg aek aer aeu aev ag- aga age agg agk agr agu agv aka ake akg akk akr aku akv ar- ara are arg ark arr aru arv au- aua aue aug auk aur auv av- ava ave avg avk avr avu eaa eae eag eak ear eau eav eea eee eeg eek eer eev ega ege egg egr egu eka eke ekg ekr eku ekv era ere erg erk err eru erv eu- eua eue eug eur euv eva eve evg evr evv gaa gae gag gak gar gau gav ge- gea gee geg gek ger geu gev gga ggg ggr ggu ggv gka gra gre grg grk grr gru grv gu- gua gue gug guk gur guu guv gva gve gvg gvk gvr gvu ka- kaa kae kag kak kar kau kav ke- kea kee keg kek ker kev kga kgu kgv kke kkk kkr kku kkv kra krg krk krr kru krv kue kug kuk kur kuu kva kvk kvr kvv ra- raa rae rag rak rar rau rav re- rea ree reg rek rer reu rev rga rge rgg rgk rgr rgv rke rkg rkk rku rkv rra rrg rrk rrr rru rua rue rug ruk rur ruu ruv rva rve rvg rvr rvu rvv ua- uaa uae uag uak uar uau uav uea uee ueg uer uga uge ugg ugk ugr ugu uka uke ukk ukr uku ur- ura ure urg urk urr uru uua uue uug uur uuu uva uve uvu uvv v-a v-e vaa vae vag vak var vau vav vea vee veg vek ver veu vga vgg vgr vgu vka vkg vra vre vrg vrk vrr vru vue vug vuk vur vuv vva vvg vvr vvv