h-i hhh hhi hhp hhs hhy hih hii hip his hph hpi hpp hps hpy hsh hsi hsp hss hsy hy- hyh hyi hyp hys hyy ihh ihi ihp ihs ihy iih iii iip iis ipi ipp ips ipy is- ish isi isp iss isy iys iyy p-p phi php phs phy pih pii pip pis pph ppi ppp pps ps- psh psi psp pss psy py- pys sh- shh shi shp shs shy sih sii sip sis sph spi spp sps spy ss- ssh ssi ssp sss sy- syh syi syp sys yhi yhs yih yii yip yis yps ysi ysp yss ysy yys yyy