a-a a-t aaa aad aao aap aar aas aat ad- ada add ado adp adr ads adt aoa aod aoo aop aor aos aot ap- apa apd apo app apr aps apt ar- ara ard aro arp arr ars art as- asa asd aso asp asr ass ast at- ata atd ato atp atr ats att daa dad dao dap dar das dat dda ddd ddo ddp ddr dds ddt doa dod doo dop dor dos dot dpa dpd dpo dpp dpr dps dpt dra drd dro drp drr drs drt dsa dsd dso dsp dsr dss dst dta dtd dto dtp dtr dts dtt oaa oad oao oap oar oas oat oda odd odo odp odr ods odt oo- ooa ood ooo oop oor oos oot op- opa opd opo opp opr ops opt or- ora ord oro orp orr ors ort os- osa osd oso osp osr oss ost ot- ota otd oto otp otr ots ott p-p paa pad pao pap par pas pat pda pdd pdo pdp pdr pds pdt poa pod poo pop por pos pot ppa ppd ppo ppp ppr pps ppt pra prd pro prp prr prs prt ps- psa psd pso psp psr pss pst pt- pta ptd pto ptp ptr pts ptt ra- raa rad rao rap rar ras rat rda rdd rdo rdp rdr rds rdt roa rod roo rop ror ros rot rpa rpd rpo rpp rpr rps rpt rra rrd rrp rrr rrs rrt rsa rsd rso rsp rsr rss rst rta rtd rto rtp rtr rts rtt saa sad sao sap sar sas sat sda sdd sdo sdp sdr sds sdt soa sod soo sop sor sos sot spa spd spo spp spr sps spt sr- sra srd sro srp srr srs srt ss- ssa ssd sso ssp ssr sss sst sta std sto stp str sts stt taa tad tao tap tar tas tat tda tdd tdo tdp tdr tds tdt to- toa tod too top tor tos tot tpa tpd tpo tpp tpr tps tpt tra trd tro trp trr trs trt tsa tsd tso tsp tsr tss tst tta ttd tto ttp ttr tts ttt