ddd ddi ddo ddp ddr dds ddt ddy di- did dii dio dip dir dis dit diy dod doi doo dop dor dos dot doy dpd dpi dpo dpp dpr dps dpt drd dri dro drp drr drs drt dry dsd dsi dso dsp dsr dss dst dsy dtd dti dto dtp dtr dts dtt dty dy- dyd dyo dyp dyr dys dyy i-d idd idi ido idp idr ids idt idy iid iii iio iip iir iis iit io- iod ioi ioo iop ior ios iot ipd ipi ipo ipp ipr ips ipt ipy ir- ird iri iro irp irr irs irt iry is- isd isi iso isp isr iss ist isy itd iti ito itp its itt ity iyo iyr iys iyt iyy o-i odd odi odo odp odr ods odt oid oii oio oip oir ois oit oo- ood ooi ooo oop oor oos oot op- opd opi opo opp opr ops opt opy or- ord ori oro orp orr ors ort ory os- osd osi oso osp osr oss ost ot- otd oti oto otp otr ots ott oyd oyi oyo oys p-p pdd pdi pdo pdp pdr pds pdt pid pii pio pip pir pis pit pod poi poo pop por pos pot poy ppd ppi ppo ppp ppr pps ppt prd pri pro prp prr prs prt pry ps- psd psi pso psp psr pss pst psy pt- ptd pti pto ptp ptr pts ptt pty py- pyd pyo pyr pys pyt rdd rdi rdo rdp rdr rds rdt rdy rid rii rio rip rir ris rit riy rod roi roo rop ror ros rot roy rpd rpi rpo rpp rpr rps rpt rrd rri rrp rrr rrs rrt rsd rsi rso rsp rsr rss rst rtd rti rto rtp rtr rts rtt rty ry- ryd ryo ryr rys ryy sdd sdi sdo sdp sdr sds sdt sdy sid sii sio sip sir sis sit sod soi soo sop sor sos sot soy spd spi spo spp spr sps spt spy sr- srd sri sro srp srr srs srt sry ss- ssd ssi sso ssp ssr sss sst std sti sto stp str sts stt sty sy- syd syi syp syr sys syt tdd tdi tdo tdp tdr tds tdt tdy tid tii tio tip tir tis tit tiy to- tod toi too top tor tos tot toy tpd tpi tpo tpp tpr tps tpt trd tri tro trp trr trs trt try tsd tsi tso tsp tsr tss tst tsy ttd tti tto ttp ttr tts ttt tty tyd tyo typ tyr tys tyt ydo yds ydt ydy yid yii yio yip yir yis yit yod yoi yoo yop yor yos yot yoy ypd ypo yps yro yrp yrs yrt ysi yso ysp ysr yss yst ysy ytd yto ytp ytr yts ytt yys yyt yyy