-th a-a a-b a-t aaa aab aah aap aat aay ab- aba abb abh abp abt aby aha ahb ahh ahp aht ahy ap- apa apb aph app apt apy at- ata atb ath atp att ay- aya ayh ayp ayt b-p baa bab bah bap bat bay bba bbb bbh bbp bbt bby bha bhb bhh bhp bht bpa bpb bph bpp bpt bpy bta btb bth btp btt bty by- bya byh byp byt haa hab hah hap hat hay hba hbb hbh hbp hbt hby hha hhb hhh hhp hht hhy hpa hpb hph hpp hpt hpy hta htb hth htp htt hty hy- hya hyb hyh hyp hyt hyy p-p paa pab pah pap pat pay pba pbb pbp pbt pby pha phb php pht phy ppa ppb pph ppp ppt pt- pta ptb pth ptp ptt pty py- pya pyb pyt taa tab tah tap tat tay tba tbb tbh tbp tbt th- tha thb thh thp tht thy tpa tpb tph tpp tpt tta ttb tth ttp ttt tty tya typ tyt yaa yab yah yap yat yay ybp yby yha yht ypa yta yth ytp ytt yyb yyt yyy