-er ddd dde ddh ddi ddm ddo ddp ddr dds de- ded dee deh dei dem deo dep der des dh- dhd dhe dhh dhi dhm dho dhp dhr dhs di- did die dih dii dim dio dip dir dis dmd dme dmh dmi dmm dmo dmp dmr dms dod doe doh doi dom doo dop dor dos dpd dpe dph dpi dpm dpo dpp dpr dps drd dre dri drm dro drp drr drs dsd dse dsh dsi dsm dso dsp dsr dss ed- edd ede edh edi edm edo edp edr eds eed eee eem eeo eep eer ees ehd ehe ehh ehi ehm eho ehp ehr ehs eid eie eii eim eio eip eir eis em- emd eme emh emi emm emo emp emr ems eo- eod eoe eoh eoi eom eoo eop eor eos ep- epd epe eph epi epm epo epp epr eps erd ere erh eri erm ero erp err ers es- esd ese esh esi esm eso esp esr ess h-i hdd hde hdh hdi hdm hdo hdp hdr hds he- hed hee heh hei hem heo hep her hes hhd hhe hhh hhi hhm hho hhp hhr hhs hid hie hih hii him hio hip hir his hmd hme hmh hmi hmm hmo hmp hmr hms hod hoe hoh hoi hom hoo hop hor hos hpd hpe hph hpi hpm hpo hpp hpr hps hr- hrd hre hrh hri hrm hro hrp hrr hrs hsd hse hsh hsi hsm hsp hsr hss i-d idd ide idh idi idm ido idp idr ids ie- ied iee iei iem iep ier ies ihd ihe ihh ihi ihm iho ihp ihr ihs iid iie iih iii iim iio iip iir iis im- imd ime imh imi imm imo imp ims io- iod ioe ioh ioi iom ioo iop ior ios ipd ipe ipi ipm ipo ipp ipr ips ir- ird ire iri irm iro irp irr irs is- isd ise ish isi ism iso isp isr iss m-o m-r mdd mde mdh mdi mdm mdo mdp mdr mds med mee meh mei mem meo mep mer mes mhd mhh mhi mhm mho mhp mhr mhs mi- mid mie mih mii mim mio mip mir mis mmd mme mmh mmi mmm mmo mmp mmr mms mod moe moh moi mom moo mop mor mos mpd mpe mph mpi mpm mpo mpp mpr mps mrd mre mrh mri mrm mro mrp mrr mrs msd mse msh msi msm mso msp msr mss o-i odd ode odh odi odm odo odp odr ods oed oee oeh oei oem oeo oep oer oes ohd ohe ohh ohi ohm oho ohp ohr ohs oid oie oii oim oio oip oir ois om- omd ome omh omi omm omo omp omr oms oo- ood ooh ooi oom ooo oop oor oos op- opd ope oph opi opm opo opp opr ops or- ord ore orh ori orm oro orp orr ors os- osd ose osh osi osm oso osp osr oss p-p pdd pde pdh pdi pdm pdo pdp pdr pds ped pee peh pei pem peo pep per pes phd phe phi phm pho php phr phs pid pie pih pii pim pio pip pir pis pmd pme pmh pmi pmm pmo pmp pmr pms pod poe poh poi pom poo pop por pos ppd ppe pph ppi ppm ppo ppp ppr pps prd pre prh pri prm pro prp prr prs ps- psd pse psh psi psm pso psp psr pss rdd rde rdh rdi rdm rdo rdp rdr rds re- red ree reh rei rem reo rep rer res rh- rhd rhe rhh rhi rhm rho rhp rhr rhs rid rie rih rii rim rio rip rir ris rmd rme rmh rmi rmm rmo rmp rmr rms rod roe roh roi rom roo rop ror ros rpd rpe rph rpi rpm rpo rpp rpr rps rrd rrh rri rrm rrp rrr rrs rsd rse rsh rsi rsm rso rsp rsr rss sdd sde sdh sdi sdm sdo sdp sdr sds se- sed see seh sei sem seo sep ser ses sh- shd she shh shi shm sho shp shr shs sid sie sih sii sim sio sip sir sis smd sme smh smi smm smo smp smr sms sod soe soh soi som soo sop sor sos spd spe sph spi spm spo spp spr sps sr- srd sre srh sri srm sro srp srr srs ss- ssd sse ssh ssi ssm sso ssp ssr sss