-er -ol ddd dde ddh ddi ddl ddo ddp ddr dds de- ded dee deh dei del deo dep der des dh- dhd dhe dhh dhi dhl dho dhp dhr dhs di- did die dih dii dil dio dip dir dis dl- dld dle dlh dli dll dlo dlp dlr dls dod doe doh doi dol doo dop dor dos dpd dpe dph dpi dpl dpo dpp dpr dps drd dre dri drl dro drp drr drs dsd dse dsh dsi dsl dso dsp dsr dss ed- edd ede edh edi edl edo edp edr eds eed eee eel eeo eep eer ees ehd ehe ehh ehi ehl eho ehp ehr ehs eid eie eii eil eio eip eir eis eld ele elh eli ell elo elp elr els eo- eod eoe eoh eoi eol eoo eop eor eos ep- epd epe eph epi epl epo epp epr eps erd ere erh eri erl ero erp err ers es- esd ese esh esi esl eso esp esr ess h-i hdd hde hdh hdi hdl hdo hdp hdr hds he- hed hee heh hei hel heo hep her hes hhd hhe hhh hhi hhl hho hhp hhr hhs hid hie hih hii hil hio hip hir his hld hle hlh hli hll hlo hlp hlr hls hod hoe hoh hoi hol hoo hop hor hos hpd hpe hph hpi hpl hpo hpp hpr hps hr- hrd hre hrh hri hrl hro hrp hrr hrs hsd hse hsh hsi hsl hsp hsr hss i-d idd ide idh idi idl ido idp idr ids ie- ied iee iei iel iep ier ies ihd ihe ihh ihi ihl iho ihp ihr ihs iid iie iih iii iil iio iip iir iis il- ild ile ilh ili ill ilo ilp ilr ils io- iod ioe ioh ioi iol ioo iop ior ios ipd ipe ipi ipl ipo ipp ipr ips ir- ird ire iri irl iro irp irr irs is- isd ise ish isi isl iso isp isr iss l-p ldd lde ldh ldi ldl ldo ldp ldr lds led lee leh lei lel leo lep ler les lhd lhh lhi lho lhp lhr lhs lid lie lih lii lil lio lip lir lis lld lle lli lll llo llp llr lls lod loe loh loi lol loo lop lor los lpd lpe lph lpi lpl lpo lpp lpr lps lrd lrh lri lro lrp lrr lrs lsd lse lsh lsi lsl lso lsp lsr lss o-i odd ode odh odi odl odo odp odr ods oed oee oeh oei oel oeo oep oer oes ohd ohe ohh ohi ohl oho ohp ohr ohs oid oie oii oil oio oip oir ois old ole oli oll olo olp ols oo- ood ooh ooi ool ooo oop oor oos op- opd ope oph opi opl opo opp opr ops or- ord ore orh ori orl oro orp orr ors os- osd ose osh osi osl oso osp osr oss p-p pdd pde pdh pdi pdl pdo pdp pdr pds ped pee peh pei pel peo pep per pes phd phe phi phl pho php phr phs pid pie pih pii pil pio pip pir pis pld ple plh pli pll plo plp plr pls pod poe poh poi pol poo pop por pos ppd ppe pph ppi ppl ppo ppp ppr pps prd pre prh pri prl pro prp prr prs ps- psd pse psh psi psl pso psp psr pss rdd rde rdh rdi rdl rdo rdp rdr rds re- red ree reh rei rel reo rep rer res rh- rhd rhe rhh rhi rhl rho rhp rhr rhs rid rie rih rii ril rio rip rir ris rld rle rlh rli rll rlo rlp rlr rls rod roe roh roi rol roo rop ror ros rpd rpe rph rpi rpl rpo rpp rpr rps rrd rrh rri rrl rrp rrr rrs rsd rse rsh rsi rsl rso rsp rsr rss sdd sde sdh sdi sdl sdo sdp sdr sds se- sed see seh sei sel seo sep ser ses sh- shd she shh shi shl sho shp shr shs sid sie sih sii sil sio sip sir sis sld sle slh sli sll slo slp slr sls sod soe soh soi sol soo sop sor sos spd spe sph spi spl spo spp spr sps sr- srd sre srh sri srl sro srp srr srs ss- ssd sse ssh ssi ssl sso ssp ssr sss