-al -ol -th a-a a-b a-c a-t aaa aab aac aah aal aao aat ab- aba abb abc abh abl abo abt ac- aca acb acc ach acl aco act aha ahb ahc ahh ahl aho aht al- ala alb alc alh all alo alt aoa aob aoc aoh aol aoo aot at- ata atb atc ath atl ato att baa bab bac bah bal bao bat bba bbb bbc bbh bbl bbo bbt bca bcb bcc bch bcl bco bct bha bhb bhc bhh bhl bho bht bla blb blc blh bll blo blt boa bob boc boh bol boo bot bta btb btc bth btl bto btt c-- caa cab cac cah cal cao cat cba cbb cbc cbh cbl cbo cbt cca ccb ccc cch ccl cco cct ch- cha chb chc chh chl cho cht cl- cla clb clc clh cll clo clt co- coa cob coc coh col coo cot cta ctb ctc cth ctl cto ctt haa hab hac hah hal hao hat hba hbb hbc hbh hbl hbo hbt hca hcb hcc hch hcl hco hct hha hhb hhc hhh hhl hho hht hla hlb hlc hlh hll hlo hlt hoa hob hoc hoh hol hoo hot hta htb htc hth htl hto htt la- laa lab lac lah lal lao lat lba lbb lbc lbh lbl lbo lbt lca lcb lcc lch lcl lco lct lha lhb lhc lhh lho lht lla llb llc lll llo llt loa lob loc loh lol loo lot lta ltb ltc lth ltl lto ltt oaa oab oac oah oal oao oat ob- oba obb obc obh obl obo obt oc- oca ocb occ och ocl oco oct oha ohc ohh ohl oho oht ola olb olc oll olo olt oo- ooa oob ooc ooh ool ooo oot ot- ota otb otc oth otl oto ott taa tab tac tah tal tao tat tba tbb tbc tbh tbl tbo tbt tca tcb tcc tch tcl tco tct th- tha thb thc thh thl tho tht tla tlc tlh tll tlo tlt to- toa tob toc toh tol too tot tta ttb ttc tth ttl tto ttt