a-a aaa aam aan aao aas aax ama amm amn amo ams amx an- ana anm ann ano ans anx aoa aom aon aoo aos aox as- asa asm asn aso ass asx ax- axa axm axn axo axs axx m-o maa mam man mao mas max mma mmm mmn mmo mms mmx mna mnm mnn mno mns moa mom mon moo mos mox msa msm msn mso mss msx mxa mxn mxs naa nam nan nao nas nax nma nmm nmn nmo nms nna nnm nnn nno nns no- noa nom non noo nos nox nsa nsm nsn nso nss nsx oaa oam oan oao oas oax om- oma omm omn omo oms omx on- ona onn ono ons onx oo- ooa oom oon ooo oos oox os- osa osm osn oso oss osx ox- oxa oxn oxo oxx saa sam san sao sas sax sma smm smn smo sms smx sna snm snn sno sns soa som son soo sos sox ss- ssa ssm ssn sso sss ssx sxm sxn sxs xaa xam xan xas xma xmm xmo xms xmx xna xno xns xoa xom xon xoo xos xox xsa xsm xss xxo xxx