-up ddd ddi ddp ddr dds ddu ddy di- did dii dip dir dis diu diy dpd dpi dpp dpr dps dpu drd dri drp drr drs dru dry dsd dsi dsp dsr dss dsu dsy dud dui dup dur dus duy dy- dyd dyp dyr dys dyu dyy i-d idd idi idp idr ids idu idy iid iii iip iir iis iiu ipd ipi ipp ipr ips ipu ipy ir- ird iri irp irr irs iru iry is- isd isi isp isr iss isu isy iu- iud iui iup iur ius iyr iys iyy p-p pdd pdi pdp pdr pds pdu pid pii pip pir pis piu ppd ppi ppp ppr pps ppu prd pri prp prr prs pru pry ps- psd psi psp psr pss psu psy pud pui pup pur pus puu puy py- pyd pyr pys pyu rdd rdi rdp rdr rds rdu rdy rid rii rip rir ris riy rpd rpi rpp rpr rps rpu rrd rri rrp rrr rrs rru rsd rsi rsp rsr rss rsu rud rui rup rur rus ruu ruy ry- ryd ryr rys ryu ryy sdd sdi sdp sdr sds sdu sdy sid sii sip sir sis siu spd spi spp spr sps spu spy sr- srd sri srp srr srs sry ss- ssd ssi ssp ssr sss ssu sud sui sup sur sus suu suy sy- syd syi syp syr sys syu udd udi udp udr uds udu uid uii uip uir uis uiu up- upd upi upp upr ups upu ur- urd uri urp urr urs uru ury usd usi usp usr uss usu uur uus uuu uyi uys uyu yds ydy yid yii yip yir yis ypd yps ypu yrp yrs yru ysi ysp ysr yss ysu ysy yud yui yup yur yus yuu yuy yys yyu yyy