-al -ol a-a a-t aaa aal aao aas aat aax al- ala all alo als alt alx aoa aol aoo aos aot aox as- asa asl aso ass ast asx at- ata atl ato ats att atx ax- axa axl axo axs axt axx la- laa lal lao las lat lax lla lll llo lls llt loa lol loo los lot lox lsa lsl lso lss lst lta ltl lto lts ltt ltx lxo lxx oaa oal oao oas oat oax ola oll olo ols olt oo- ooa ool ooo oos oot oox os- osa osl oso oss ost osx ot- ota otl oto ots ott ox- oxa oxo oxt oxx saa sal sao sas sat sax sla sll slo sls slt slx soa sol soo sos sot sox ss- ssa ssl sso sss sst ssx sta stl sto sts stt stx sxl sxs sxt t-x taa tal tao tas tat tax tla tll tlo tls tlt tlx to- toa tol too tos tot tox tsa tsl tso tss tst tsx tta ttl tto tts ttt ttx txl txs txt xaa xal xas xat xla xls xlt xoa xoo xos xot xox xsa xsl xss xst xts xtx xxl xxo xxx