a-a a-c a-t aaa aac aao aas aat aaw aay ac- aca acc aco acs act acw acy aoa aoc aoo aos aot aow as- asa asc aso ass ast asw asy at- ata atc ato ats att atw aw- awa awc awo aws awt aww awy ay- aya ayc ayo ays ayt ayw c-- caa cac cao cas cat caw cay cca ccc cco ccs cct ccw co- coa coc coo cos cot cow coy csa csc cso css cst csw csy cta ctc cto cts ctt ctw cty cw- cwa cwc cwo cws cwt cya cyc cyo cys cyt cyw oaa oac oao oas oat oaw oc- oca occ oco ocs oct ocw oo- ooa ooc ooo oos oot oow os- osa osc oso oss ost osw ot- ota otc oto ots ott otw owa owc owo ows owt oww oya oyo oys saa sac sao sas sat saw say sca scc sco scs sct scw soa soc soo sos sot sow soy ss- ssa ssc sso sss sst ssw sta stc sto sts stt stw sty swa swc swo sws swt swy sy- sya syc sys syt taa tac tao tas tat taw tay tca tcc tco tcs tct tcw to- toa toc too tos tot tow toy tsa tsc tso tss tst tsw tsy tta ttc tto tts ttt ttw tty twa twc two tws twt tww twy tya tyc tyo tys tyt waa wac wao was wat waw way wca wcc wco wcs wct wcw woa woc woo wos wot wow woy wsa wsc wso wss wst wsw wta wtc wto wts wtt wtw wwa wwc wwo wwt www wy- wya wyc wyo wys wyt yaa yac yao yas yat yaw yay yca ycc yco ycs ycw ycy yoc yoo yos yot yow yoy ysa ysc yso yss yst ysy yta ytc yto yts ytt ywc yyc yys yyt yyy