-th a-a a-b a-c a-t aaa aab aac aah aap aas aat aay ab- aba abb abc abh abp abs abt aby ac- aca acb acc ach acp acs act acy aha ahb ahc ahh ahp ahs aht ahy ap- apa apb apc aph app aps apt apy as- asa asb asc ash asp ass ast asy at- ata atb atc ath atp ats att ay- aya ayc ayh ayp ays ayt b-p baa bab bac bah bap bas bat bay bba bbb bbc bbh bbp bbs bbt bby bca bcb bcc bch bcp bcs bct bcy bha bhb bhc bhh bhp bhs bht bpa bpb bpc bph bpp bps bpt bpy bsa bsb bsc bsh bsp bss bst bsy bta btb btc bth btp bts btt bty by- bya byc byh byp bys byt c-- caa cab cac cah cap cas cat cay cba cbb cbc cbh cbp cbs cbt cby cca ccb ccc cch ccp ccs cct ch- cha chb chc chh chp chs cht chy cpa cpb cpc cph cpp cps cpt csa csb csc csh csp css cst csy cta ctb ctc cth ctp cts ctt cty cya cyb cyc cyp cys cyt haa hab hac hah hap has hat hay hba hbb hbc hbh hbp hbs hbt hby hca hcb hcc hch hcp hcs hct hcy hha hhb hhc hhh hhp hhs hht hhy hpa hpb hpc hph hpp hps hpt hpy hsa hsb hsc hsh hsp hss hst hsy hta htb htc hth htp hts htt hty hy- hya hyb hyc hyh hyp hys hyt hyy p-p paa pab pac pah pap pas pat pay pba pbb pbc pbp pbs pbt pby pca pcb pcc pch pcp pcs pct pha phb phc php phs pht phy ppa ppb ppc pph ppp pps ppt ps- psa psb psc psh psp pss pst psy pt- pta ptb ptc pth ptp pts ptt pty py- pya pyb pyc pys pyt saa sab sac sah sap sas sat say sba sbb sbc sbh sbp sbs sbt sby sca scb scc sch scp scs sct sh- sha shb shc shh shp shs sht shy spa spb spc sph spp sps spt spy ss- ssa ssb ssc ssh ssp sss sst sta stb stc sth stp sts stt sty sy- sya syb syc syh syp sys syt taa tab tac tah tap tas tat tay tba tbb tbc tbh tbp tbs tbt tca tcb tcc tch tcp tcs tct th- tha thb thc thh thp ths tht thy tpa tpb tpc tph tpp tps tpt tsa tsb tsc tsh tsp tss tst tsy tta ttb ttc tth ttp tts ttt tty tya tyc typ tys tyt yaa yab yac yah yap yas yat yay ybc ybp ybs yby yca ycc ych ycp ycs ycy yha yhc yhs yht ypa yps ysa ysb ysc ysp yss yst ysy yta ytc yth ytp yts ytt yyb yyc yys yyt yyy