-er -ey a-a a-t aaa aae aan aar aat aax aay aea aee aen aer aet aex aey an- ana ane ann anr ant anx any ar- ara are arn arr art arx ary at- ata ate atn atr att atx ax- axa axe axn axr axt axx ay- aya aye ayn ayr ayt ayx eaa eae ean ear eat eax eea eee een eer eet eex eey en- ena ene enn enr ent eny era ere ern err ert ery eta ete etn etr ett etx ety ex- exa exe exr ext exx exy eya eye eyn eyr eyt naa nae nan nar nat nax nay ne- nea nee nen ner net nex ney nna nne nnn nnt nra nre nrn nrr nrt nrx nry nta nte ntn ntr ntt ntx nxt nya nye nyn nyt nyx nyy ra- raa rae ran rar rat rax ray re- rea ree ren rer ret rex rey rna rnn rnr rnt rny rra rrn rrr rrt rta rte rtn rtr rtt rtx rty rxr ry- rya rye ryn ryr ryy t-x taa tae tan tar tat tax tay te- tea tee ten ter tet tex tey tna tne tnn tnr tnt tnx tra tre trn trr trt trx try tta tte ttn ttr ttt ttx tty txe txn txt tya tye tyn tyr tyt xaa xan xar xat xee xen xer xet xex xna xrt xrx xry xtr xtx xty xxx xxy xyr xyy yaa yae yan yar yat yax yay yea yee yen yer yet yex yey yna yne ynn yny yra yre yrn yrt yta yte ytn ytr ytt yxa yxe yxy yye yyt yyy