-er a-a a-i a-t aaa aad aae aai aap aar aas aat ad- ada add ade adi adp adr ads adt aea aed aee aei aep aer aes aet ai- aia aid aie aii aip air ais ait ap- apa apd ape api app apr aps apt ar- ara ard are ari arp arr ars art as- asa asd ase asi asp asr ass ast at- ata atd ate ati atp atr ats att daa dad dae dai dap dar das dat dda ddd dde ddi ddp ddr dds ddt de- dea ded dee dei dep der des det di- dia did die dii dip dir dis dit dpa dpd dpe dpi dpp dpr dps dpt dra drd dre dri drp drr drs drt dsa dsd dse dsi dsp dsr dss dst dta dtd dte dti dtp dtr dts dtt eaa ead eae eai eap ear eas eat ed- eda edd ede edi edp edr eds edt eea eed eee eep eer ees eet eia eid eie eii eip eir eis eit ep- epa epd epe epi epp epr eps ept era erd ere eri erp err ers ert es- esa esd ese esi esp esr ess est eta etd ete eti etp etr ets ett i-d ia- iaa iad iae iai iap iar ias iat ida idd ide idi idp idr ids idt ie- iea ied iee iei iep ier ies iet iia iid iie iii iip iir iis iit ipa ipd ipe ipi ipp ipr ips ipt ir- ira ird ire iri irp irr irs irt is- isa isd ise isi isp isr iss ist ita itd ite iti itp its itt p-p paa pad pae pai pap par pas pat pda pdd pde pdi pdp pdr pds pdt pea ped pee pei pep per pes pet pia pid pie pii pip pir pis pit ppa ppd ppe ppi ppp ppr pps ppt pra prd pre pri prp prr prs prt ps- psa psd pse psi psp psr pss pst pt- pta ptd pte pti ptp ptr pts ptt ra- raa rad rae rai rap rar ras rat rda rdd rde rdi rdp rdr rds rdt re- rea red ree rei rep rer res ret ria rid rie rii rip rir ris rit rpa rpd rpe rpi rpp rpr rps rpt rra rrd rri rrp rrr rrs rrt rsa rsd rse rsi rsp rsr rss rst rta rtd rte rti rtp rtr rts rtt saa sad sae sai sap sar sas sat sda sdd sde sdi sdp sdr sds sdt se- sea sed see sei sep ser ses set sia sid sie sii sip sir sis sit spa spd spe spi spp spr sps spt sr- sra srd sre sri srp srr srs srt ss- ssa ssd sse ssi ssp ssr sss sst sta std ste sti stp str sts stt taa tad tae tai tap tar tas tat tda tdd tde tdi tdp tdr tds tdt te- tea ted tee tei tep ter tes tet tia tid tie tii tip tir tis tit tpa tpd tpe tpi tpp tpr tps tpt tra trd tre tri trp trr trs trt tsa tsd tse tsi tsp tsr tss tst tta ttd tte tti ttp ttr tts ttt