a-a a-b aaa aab aad aae aas aaw aax ab- aba abb abd abe abs abw abx ad- ada adb add ade ads adw adx aea aeb aed aee aes aew aex as- asa asb asd ase ass asw asx aw- awa awb awd awe aws aww ax- axa axe axs axx baa bab bad bae bas baw bax bba bbb bbd bbe bbs bbw bbx bda bdb bdd bde bds bdw bdx be- bea beb bed bee bes bew bex bsa bsb bsd bse bss bsw bsx bwa bwb bwd bws bxb bxd bxw bxx daa dab dad dae das daw dax dba dbb dbd dbe dbs dbx dda ddb ddd dde dds ddw ddx de- dea deb ded dee des dew dex dsa dsb dsd dse dss dsw dsx dwa dwb dwe dws dww dwx dxd dxs dxx eaa eab ead eae eas eaw eax eba ebb ebd ebe ebs ebw ebx ed- eda edb edd ede eds edw edx eea eeb eed eee ees eew eex es- esa esb esd ese ess esw esx ewa ewb ewd ewe ews eww ex- exa exd exe exs exw exx saa sab sad sae sas saw sax sba sbb sbd sbe sbs sbw sbx sda sdb sdd sde sds sdw se- sea seb sed see ses sew sex ss- ssa ssb ssd sse sss ssw ssx swa swb swd swe sws sxs waa wab wad wae was waw wax wba wbb wbd wbe wbs wbw wbx wda wdb wds wea web wed wee wes wew wex wsa wsb wsd wse wss wsw wsx wwa wwd wwe www wxw xaa xad xas xbe xbx xda xdb xde xds xed xee xes xew xex xsa xsb xss xwa xwd xxx