-er -ic a-a a-c a-i a-t aaa aac aad aae aai aap aar aas aat ac- aca acc acd ace aci acp acr acs act ad- ada adc add ade adi adp adr ads adt aea aec aed aee aei aep aer aes aet ai- aia aic aid aie aii aip air ais ait ap- apa apc apd ape api app apr aps apt ar- ara arc ard are ari arp arr ars art as- asa asc asd ase asi asp asr ass ast at- ata atc atd ate ati atp atr ats att c-- caa cac cad cae cai cap car cas cat cca ccc ccd cce cci ccp ccr ccs cct cda cdc cdd cde cdi cdp cdr cds cdt ce- cea cec ced cee cei cep cer ces cet ci- cia cic cid cie cii cip cir cis cit cpa cpc cpd cpe cpi cpp cpr cps cpt cra crc crd cre cri crp crr crs crt csa csc csd cse csi csp csr css cst cta ctc ctd cte cti ctp ctr cts ctt daa dac dad dae dai dap dar das dat dca dcc dcd dce dci dcp dcr dcs dct dda ddc ddd dde ddi ddp ddr dds ddt de- dea dec ded dee dei dep der des det di- dia dic did die dii dip dir dis dit dpa dpc dpd dpe dpi dpp dpr dps dpt dra drc drd dre dri drp drr drs drt dsa dsc dsd dse dsi dsp dsr dss dst dta dtc dtd dte dti dtp dtr dts dtt eaa eac ead eae eai eap ear eas eat ec- eca ecc ecd ece eci ecr ecs ect ed- eda edc edd ede edi edp edr eds edt eea eec eed eee eep eer ees eet eia eic eid eie eii eip eir eis eit ep- epa epc epd epe epi epp epr eps ept era erc erd ere eri erp err ers ert es- esa esc esd ese esi esp esr ess est eta etc etd ete eti etp etr ets ett i-d ia- iaa iac iad iae iai iap iar ias iat ica icc icd ice ici icp icr ics ict ida idc idd ide idi idp idr ids idt ie- iea iec ied iee iei iep ier ies iet iia iic iid iie iii iip iir iis iit ipa ipc ipd ipe ipi ipp ipr ips ipt ir- ira irc ird ire iri irp irr irs irt is- isa isc isd ise isi isp isr iss ist ita itc itd ite iti itp its itt p-p paa pac pad pae pai pap par pas pat pca pcc pcd pce pci pcp pcr pcs pct pda pdc pdd pde pdi pdp pdr pds pdt pea pec ped pee pei pep per pes pet pia pic pid pie pii pip pir pis pit ppa ppc ppd ppe ppi ppp ppr pps ppt pra prc prd pre pri prp prr prs prt ps- psa psc psd pse psi psp psr pss pst pt- pta ptc ptd pte pti ptp ptr pts ptt ra- raa rac rad rae rai rap rar ras rat rca rcc rcd rce rci rcp rcr rcs rct rda rdc rdd rde rdi rdp rdr rds rdt re- rea rec red ree rei rep rer res ret ria ric rid rie rii rip rir ris rit rpa rpc rpd rpe rpi rpp rpr rps rpt rra rrc rrd rri rrp rrr rrs rrt rsa rsc rsd rse rsi rsp rsr rss rst rta rtc rtd rte rti rtp rtr rts rtt saa sac sad sae sai sap sar sas sat sca scc scd sce sci scp scr scs sct sda sdc sdd sde sdi sdp sdr sds sdt se- sea sec sed see sei sep ser ses set sia sic sid sie sii sip sir sis sit spa spc spd spe spi spp spr sps spt sr- sra src srd sre sri srp srr srs srt ss- ssa ssc ssd sse ssi ssp ssr sss sst sta stc std ste sti stp str sts stt taa tac tad tae tai tap tar tas tat tca tcc tcd tce tci tcp tcr tcs tct tda tdc tdd tde tdi tdp tdr tds tdt te- tea tec ted tee tei tep ter tes tet tia tic tid tie tii tip tir tis tit tpa tpc tpd tpe tpi tpp tpr tps tpt tra trc trd tre tri trp trr trs trt tsa tsc tsd tse tsi tsp tsr tss tst tta ttc ttd tte tti ttp ttr tts ttt