-er -th eee eep eer ees eet eex ehe ehh ehp ehr ehs eht ep- epe eph epp epr eps ept epx ere erh erp err ers ert es- ese esh esp esr ess est esx ete eth etp etr ets ett etx ex- exe exh exp exr exs ext exx he- hee heh hep her hes het hex hhe hhh hhp hhr hhs hht hpe hph hpp hpr hps hpt hr- hre hrh hrp hrr hrs hrt hse hsh hsp hsr hss hst hsx hte hth htp htr hts htt htx p-p pee peh pep per pes pet pex phe php phr phs pht phx ppe pph ppp ppr pps ppt ppx pre prh prp prr prs prt prx ps- pse psh psp psr pss pst psx pt- pte pth ptp ptr pts ptt ptx pxe pxr pxs pxt re- ree reh rep rer res ret rex rh- rhe rhh rhp rhr rhs rht rpe rph rpp rpr rps rpt rpx rrh rrp rrr rrs rrt rse rsh rsp rsr rss rst rsx rte rtp rtr rts rtt rtx rxp rxr rxs se- see seh sep ser ses set sex sh- she shh shp shr shs sht spe sph spp spr sps spt spx sr- sre srh srp srr srs srt srx ss- sse ssh ssp ssr sss sst ssx ste sth stp str sts stt stx sxs sxt t-x te- tee teh tep ter tes tet tex th- the thh thp thr ths tht thx tpe tph tpp tpr tps tpt tpx tre trh trp trr trs trt trx tse tsh tsp tsr tss tst tsx tte tth ttp ttr tts ttt ttx txe txs txt xee xep xer xes xet xex xhp xht xpe xpp xps xpt xrt xrx xsp xss xst xtp xtr xts xtx xxp xxx