-up ddd ddp ddr dds ddt ddu ddy dpd dpp dpr dps dpt dpu drd drp drr drs drt dru dry dsd dsp dsr dss dst dsu dsy dtd dtp dtr dts dtt dtu dty dud dup dur dus dut duy dy- dyd dyp dyr dys dyu dyy p-p pdd pdp pdr pds pdt pdu ppd ppp ppr pps ppt ppu prd prp prr prs prt pru pry ps- psd psp psr pss pst psu psy pt- ptd ptp ptr pts ptt ptu pty pud pup pur pus put puu puy py- pyd pyr pys pyt pyu rdd rdp rdr rds rdt rdu rdy rpd rpp rpr rps rpt rpu rrd rrp rrr rrs rrt rru rsd rsp rsr rss rst rsu rtd rtp rtr rts rtt rtu rty rud rup rur rus rut ruu ruy ry- ryd ryr rys ryu ryy sdd sdp sdr sds sdt sdu sdy spd spp spr sps spt spu spy sr- srd srp srr srs srt sry ss- ssd ssp ssr sss sst ssu std stp str sts stt stu sty sud sup sur sus sut suu suy sy- syd syp syr sys syt syu tdd tdp tdr tds tdt tdu tdy tpd tpp tpr tps tpt tpu trd trp trr trs trt tru try tsd tsp tsr tss tst tsu tsy ttd ttp ttr tts ttt ttu tty tud tup tur tus tut tuu tuy tyd typ tyr tys tyt udd udp udr uds udt udu up- upd upp upr ups upt upu ur- urd urp urr urs urt uru ury usd usp usr uss ust usu utd utp utr uts utt utu uty uur uus uut uuu uys uyu yds ydt ydy ypd yps ypu yrp yrs yrt yru ysp ysr yss yst ysu ysy ytd ytp ytr yts ytt ytu yud yup yur yus yut yuu yuy yys yyt yyu yyy