-th hhh hho hhp hhs hht hhy hoh hoo hop hos hot hoy hph hpo hpp hps hpt hpy hsh hsp hss hst hsy hth hto htp hts htt hty hy- hyh hyo hyp hys hyt hyy ohh oho ohp ohs oht oo- ooh ooo oop oos oot op- oph opo opp ops opt opy os- osh oso osp oss ost ot- oth oto otp ots ott oyo oys p-p pho php phs pht phy poh poo pop pos pot poy pph ppo ppp pps ppt ps- psh pso psp pss pst psy pt- pth pto ptp pts ptt pty py- pyo pys pyt sh- shh sho shp shs sht shy soh soo sop sos sot soy sph spo spp sps spt spy ss- ssh sso ssp sss sst sth sto stp sts stt sty sy- syh syp sys syt th- thh tho thp ths tht thy to- toh too top tos tot toy tph tpo tpp tps tpt tsh tso tsp tss tst tsy tth tto ttp tts ttt tty tyo typ tys tyt yhs yht yoo yop yos yot yoy ypo yps yso ysp yss yst ysy yth yto ytp yts ytt yys yyt yyy