-al -th a-a a-b a-c a-t aaa aab aac aah aal aar aat ab- aba abb abc abh abl abr abt ac- aca acb acc ach acl acr act aha ahb ahc ahh ahl ahr aht al- ala alb alc alh all alr alt ar- ara arb arc arh arl arr art at- ata atb atc ath atl atr att baa bab bac bah bal bar bat bba bbb bbc bbh bbl bbr bbt bca bcb bcc bch bcl bcr bct bha bhb bhc bhh bhl bhr bht bla blb blc blh bll blr blt bra brb brh brl brr brt bta btb btc bth btl btr btt c-- caa cab cac cah cal car cat cba cbb cbc cbh cbl cbr cbt cca ccb ccc cch ccl ccr cct ch- cha chb chc chh chl chr cht cl- cla clb clc clh cll clr clt cra crb crc crh crl crr crt cta ctb ctc cth ctl ctr ctt haa hab hac hah hal har hat hba hbb hbc hbh hbl hbr hbt hca hcb hcc hch hcl hcr hct hha hhb hhc hhh hhl hhr hht hla hlb hlc hlh hll hlr hlt hr- hra hrb hrc hrh hrl hrr hrt hta htb htc hth htl htr htt la- laa lab lac lah lal lar lat lba lbb lbc lbh lbl lbr lbt lca lcb lcc lch lcl lcr lct lha lhb lhc lhh lhr lht lla llb llc lll llr llt lra lrb lrc lrh lrr lrt lta ltb ltc lth ltl ltr ltt ra- raa rab rac rah ral rar rat rba rbb rbc rbh rbl rbr rbt rca rcb rcc rch rcl rcr rct rh- rha rhb rhc rhh rhl rhr rht rla rlc rlh rll rlr rlt rra rrb rrc rrh rrl rrr rrt rta rtb rtc rtl rtr rtt taa tab tac tah tal tar tat tba tbb tbc tbh tbl tbr tbt tca tcb tcc tch tcl tcr tct th- tha thb thc thh thl thr tht tla tlc tlh tll tlr tlt tra trb trc trh trl trr trt tta ttb ttc tth ttl ttr ttt