-al -ol a-a a-t aaa aal aao aar aat aax al- ala all alo alr alt alx aoa aol aoo aor aot aox ar- ara arl aro arr art arx at- ata atl ato atr att atx ax- axa axl axo axr axt axx la- laa lal lao lar lat lax lla lll llo llr llt loa lol loo lor lot lox lra lro lrr lrt lta ltl lto ltr ltt ltx lxo lxr lxx oaa oal oao oar oat oax ola oll olo olt oo- ooa ool ooo oor oot oox or- ora orl oro orr ort orx ot- ota otl oto otr ott ox- oxa oxo oxt oxx ra- raa ral rao rar rat rax rla rll rlo rlr rlt roa rol roo ror rot rox rra rrl rrr rrt rta rtl rto rtr rtt rtx rxr t-x taa tal tao tar tat tax tla tll tlo tlr tlt tlx to- toa tol too tor tot tox tra trl tro trr trt trx tta ttl tto ttr ttt ttx txl txt xaa xal xar xat xla xlr xlt xoa xoo xor xot xox xrt xrx xtr xtx xxl xxo xxx