-th h-i hhh hhi hho hhp hhr hhs hht hih hii hio hip hir his hit hix hoh hoi hoo hop hor hos hot hox hph hpi hpo hpp hpr hps hpt hr- hrh hri hro hrp hrr hrs hrt hsh hsi hsp hsr hss hst hsx hth hti hto htp htr hts htt htx ihh ihi iho ihp ihr ihs iht iih iii iio iip iir iis iit iix io- ioh ioi ioo iop ior ios iot ipi ipo ipp ipr ips ipt ipx ir- iri iro irp irr irs irt irx is- ish isi iso isp isr iss ist ith iti ito itp its itt itx ixi o-i ohh ohi oho ohp ohr ohs oht oii oio oip oir ois oit oo- ooh ooi ooo oop oor oos oot oox op- oph opi opo opp opr ops opt opx or- orh ori oro orp orr ors ort orx os- osh osi oso osp osr oss ost osx ot- oth oti oto otp otr ots ott ox- oxi oxo oxt oxx p-p phi pho php phr phs pht phx pih pii pio pip pir pis pit pix poh poi poo pop por pos pot pox pph ppi ppo ppp ppr pps ppt ppx prh pri pro prp prr prs prt prx ps- psh psi pso psp psr pss pst psx pt- pth pti pto ptp ptr pts ptt ptx pxr pxs pxt rh- rhh rhi rho rhp rhr rhs rht rih rii rio rip rir ris rit rix roh roi roo rop ror ros rot rox rph rpi rpo rpp rpr rps rpt rpx rrh rri rrp rrr rrs rrt rsh rsi rso rsp rsr rss rst rsx rti rto rtp rtr rts rtt rtx rxp rxr rxs sh- shh shi sho shp shr shs sht sih sii sio sip sir sis sit six soh soi soo sop sor sos sot sox sph spi spo spp spr sps spt spx sr- srh sri sro srp srr srs srt srx ss- ssh ssi sso ssp ssr sss sst ssx sth sti sto stp str sts stt stx sxi sxs sxt t-x th- thh thi tho thp thr ths tht thx tih tii tio tip tir tis tit tix to- toh toi too top tor tos tot tox tph tpi tpo tpp tpr tps tpt tpx trh tri tro trp trr trs trt trx tsh tsi tso tsp tsr tss tst tsx tth tti tto ttp ttr tts ttt ttx txi txs txt xhp xht xii xio xis xit xix xoi xoo xop xor xos xot xox xpo xpp xps xpt xrt xrx xsi xsp xss xst xti xtp xtr xts xtx xxi xxo xxp xxx