-al -ol -th a-a a-c a-t aaa aac aah aal aao aar aat aax ac- aca acc ach acl aco acr act acx aha ahc ahh ahl aho ahr aht ahx al- ala alc alh all alo alr alt alx aoa aoc aoh aol aoo aor aot aox ar- ara arc arh arl aro arr art arx at- ata atc ath atl ato atr att atx ax- axa axh axl axo axr axt axx c-- caa cac cah cal cao car cat cax cca ccc cch ccl cco ccr cct ccx ch- cha chc chh chl cho chr cht chx cl- cla clc clh cll clo clr clt clx co- coa coc coh col coo cor cot cox cra crc crh crl cro crr crt crx cta ctc cth ctl cto ctr ctt ctx cxc cxh cxl cxo cxr cxt cxx haa hac hah hal hao har hat hax hca hcc hch hcl hco hcr hct hha hhc hhh hhl hho hhr hht hla hlc hlh hll hlo hlr hlt hlx hoa hoc hoh hol hoo hor hot hox hr- hra hrc hrh hrl hro hrr hrt hta htc hth htl hto htr htt htx hxc hxl la- laa lac lah lal lao lar lat lax lca lcc lch lcl lco lcr lct lcx lha lhc lhh lho lhr lht lhx lla llc lll llo llr llt loa loc loh lol loo lor lot lox lra lrc lrh lro lrr lrt lta ltc lth ltl lto ltr ltt ltx lxc lxo lxr lxx oaa oac oah oal oao oar oat oax oc- oca occ och ocl oco ocr oct ocx oha ohc ohh ohl oho ohr oht ola olc oll olo olt oo- ooa ooc ooh ool ooo oor oot oox or- ora orc orh orl oro orr ort orx ot- ota otc oth otl oto otr ott ox- oxa oxc oxo oxt oxx ra- raa rac rah ral rao rar rat rax rca rcc rch rcl rco rcr rct rcx rh- rha rhc rhh rhl rho rhr rht rla rlc rlh rll rlo rlr rlt roa roc roh rol roo ror rot rox rra rrc rrh rrl rrr rrt rta rtc rtl rto rtr rtt rtx rxr t-x taa tac tah tal tao tar tat tax tca tcc tch tcl tco tcr tct tcx th- tha thc thh thl tho thr tht thx tla tlc tlh tll tlo tlr tlt tlx to- toa toc toh tol too tor tot tox tra trc trh trl tro trr trt trx tta ttc tth ttl tto ttr ttt ttx txl txt xaa xac xal xar xat xch xcl xcr xcx xht xla xlr xlt xoa xoc xoo xor xot xox xrc xrt xrx xtc xtr xtx xxl xxo xxx