-er a-a a-z aaa aae aap aar aav aaz aea aee aep aer aev aez ap- apa ape app apr apv ar- ara are arp arr arv arz av- ava ave avp avr avz az- aza aze azp azz eaa eae eap ear eav eaz eea eee eep eer eev ep- epa epe epp epr epz era ere erp err erv erz eva eve evp evr evv eze ezr ezz p-p paa pae pap par pav paz pea pee pep per pev pez ppa ppe ppp ppr ppv ppz pra pre prp prr prv prz pva pve pvp pvr pvv pvz pzp ra- raa rae rap rar rav raz re- rea ree rep rer rev rez rpa rpe rpp rpr rpv rpz rra rrp rrr rva rve rvp rvr rvv rza rze v-a v-e vaa vae vap var vav vaz vea vee vep ver vez vpa vpe vpp vpr vra vre vrp vrr vva vvr vvv vvz zaa zap zar zav zaz zea zee zep zer zev zez zpe zpp zpr zrp zzr zzz