a-a a-c aaa aac aao aas aaw aay ac- aca acc aco acs acw acy aoa aoc aoo aos aow as- asa asc aso ass asw asy aw- awa awc awo aws aww awy ay- aya ayc ayo ays ayw c-- caa cac cao cas caw cay cca ccc cco ccs ccw co- coa coc coo cos cow coy csa csc cso css csw csy cw- cwa cwc cwo cws cya cyc cyo cys cyw oaa oac oao oas oaw oc- oca occ oco ocs ocw oo- ooa ooc ooo oos oow os- osa osc oso oss osw owa owc owo ows oww oya oyo oys saa sac sao sas saw say sca scc sco scs scw soa soc soo sos sow soy ss- ssa ssc sso sss ssw swa swc swo sws swy sy- sya syc sys waa wac wao was waw way wca wcc wco wcs wcw woa woc woo wos wow woy wsa wsc wso wss wsw wwa wwc wwo www wy- wya wyc wyo wys yaa yac yao yas yaw yay yca ycc yco ycs ycw ycy yoc yoo yos yow yoy ysa ysc yso yss ysy ywc yyc yys yyy