a-a aaa aam aan aao aas aax aay ama amm amn amo ams amx amy an- ana anm ann ano ans anx any aoa aom aon aoo aos aox as- asa asm asn aso ass asx asy ax- axa axm axn axo axs axx ay- aya ayn ayo ays ayx m-o maa mam man mao mas max may mma mmm mmn mmo mms mmx mna mnm mnn mno mns moa mom mon moo mos mox moy msa msm msn mso mss msx msy mxa mxn mxs my- mya mym myn myo mys myx naa nam nan nao nas nax nay nma nmm nmn nmo nms nna nnm nnn nno nns no- noa nom non noo nos nox noy nsa nsm nsn nso nss nsx nsy nya nym nyn nyo nys nyx nyy oaa oam oan oao oas oax om- oma omm omn omo oms omx omy on- ona onn ono ons onx ony oo- ooa oom oon ooo oos oox os- osa osm osn oso oss osx ox- oxa oxn oxo oxx oxy oya oyo oys saa sam san sao sas sax say sma smm smn smo sms smx smy sna snm snn sno sns sny soa som son soo sos sox soy ss- ssa ssm ssn sso sss ssx sxm sxn sxs sy- sya sym syn sys syx xaa xam xan xas xma xmm xmo xms xmx xna xno xns xoa xom xon xoo xos xox xsa xsm xss xxo xxx xxy xyy yaa yam yan yao yas yax yay yma ymm ymo yms yna ynn yns yny yom yon yoo yos yox yoy ysa ysm yso yss ysy yxa yxy yys yyy