-er a-a aaa aae aag aak aar aav aea aee aeg aek aer aev ag- aga age agg agk agr agv aka ake akg akk akr akv ar- ara are arg ark arr arv av- ava ave avg avk avr eaa eae eag eak ear eav eea eee eeg eek eer eev ega ege egg egr eka eke ekg ekr ekv era ere erg erk err erv eva eve evg evr evv gaa gae gag gak gar gav ge- gea gee geg gek ger gev gga ggg ggr ggv gka gra gre grg grk grr grv gva gve gvg gvk gvr ka- kaa kae kag kak kar kav ke- kea kee keg kek ker kev kga kgv kke kkk kkr kkv kra krg krk krr krv kva kvk kvr kvv ra- raa rae rag rak rar rav re- rea ree reg rek rer rev rga rge rgg rgk rgr rgv rke rkg rkk rkv rra rrg rrk rrr rva rve rvg rvr rvv v-a v-e vaa vae vag vak var vav vea vee veg vek ver vga vgg vgr vka vkg vra vre vrg vrk vrr vva vvg vvr vvv