a-a a-t aaa aad aaf aao aap aar aas aat ad- ada add adf ado adp adr ads adt af- afa afd aff afo afp afr afs aft aoa aod aof aoo aop aor aos aot ap- apa apd apf apo app apr aps apt ar- ara ard arf aro arp arr ars art as- asa asd asf aso asp asr ass ast at- ata atd atf ato atp atr ats att daa dad daf dao dap dar das dat dda ddd ddf ddo ddp ddr dds ddt dfa dfd dff dfo dfp dfr dfs dft doa dod dof doo dop dor dos dot dpa dpd dpf dpo dpp dpr dps dpt dra drd dro drp drr drs drt dsa dsd dsf dso dsp dsr dss dst dta dtd dtf dto dtp dtr dts dtt faa fad faf fao fap far fas fat fda fdd fdf fdo fdp fdr fds fdt ffa ffd fff ffo ffp ffr ffs fft foa fof foo fop for fos fot fpa fpd fpo fpp fpr fps fpt fra frd frf fro frp frr frs frt fsa fsd fsf fso fsp fsr fss fst fta ftd ftf fto ftp ftr fts ftt oaa oad oaf oao oap oar oas oat oda odd odf odo odp odr ods odt of- ofa ofd off ofo ofp ofr ofs oft oo- ooa ood oof ooo oop oor oos oot op- opa opd opf opo opp opr ops opt or- ora ord orf oro orp orr ors ort os- osa osd osf oso osp osr oss ost ot- ota otd otf oto otp otr ots ott p-p paa pad paf pao pap par pas pat pda pdd pdf pdo pdp pdr pds pdt pfa pfd pff pfo pfp pfr pfs pft poa pod pof poo pop por pos pot ppa ppd ppf ppo ppp ppr pps ppt pra prd prf pro prp prr prs prt ps- psa psd psf pso psp psr pss pst pt- pta ptd ptf pto ptp ptr pts ptt ra- raa rad raf rao rap rar ras rat rda rdd rdf rdo rdp rdr rds rdt rfa rfd rff rfo rfp rfr rfs rft roa rod rof roo rop ror ros rot rpa rpd rpf rpo rpp rpr rps rpt rra rrd rrf rrp rrr rrs rrt rsa rsd rsf rso rsp rsr rss rst rta rtd rtf rto rtp rtr rts rtt saa sad saf sao sap sar sas sat sda sdd sdf sdo sdp sdr sds sdt sfa sfd sff sfo sfp sfr sfs sft soa sod sof soo sop sor sos sot spa spd spf spo spp spr sps spt sr- sra srd srf sro srp srr srs srt ss- ssa ssd ssf sso ssp ssr sss sst sta std stf sto stp str sts stt taa tad taf tao tap tar tas tat tda tdd tdf tdo tdp tdr tds tdt tfa tfd tff tfo tfp tfr tfs tft to- toa tod tof too top tor tos tot tpa tpd tpf tpo tpp tpr tps tpt tra trd trf tro trp trr trs trt tsa tsd tsf tso tsp tsr tss tst tta ttd ttf tto ttp ttr tts ttt