ddd ddi ddo ddr dds ddt ddy di- did dii dio dir dis dit diy dod doi doo dor dos dot doy drd dri dro drr drs drt dry dsd dsi dso dsr dss dst dsy dtd dti dto dtr dts dtt dty dy- dyd dyo dyr dys dyy i-d idd idi ido idr ids idt idy iid iii iio iir iis iit io- iod ioi ioo ior ios iot ir- ird iri iro irr irs irt iry is- isd isi iso isr iss ist isy itd iti ito its itt ity iyo iyr iys iyt iyy o-i odd odi odo odr ods odt oid oii oio oir ois oit oo- ood ooi ooo oor oos oot or- ord ori oro orr ors ort ory os- osd osi oso osr oss ost ot- otd oti oto otr ots ott oyd oyi oyo oys rdd rdi rdo rdr rds rdt rdy rid rii rio rir ris rit riy rod roi roo ror ros rot roy rrd rri rrr rrs rrt rsd rsi rso rsr rss rst rtd rti rto rtr rts rtt rty ry- ryd ryo ryr rys ryy sdd sdi sdo sdr sds sdt sdy sid sii sio sir sis sit sod soi soo sor sos sot soy sr- srd sri sro srr srs srt sry ss- ssd ssi sso ssr sss sst std sti sto str sts stt sty sy- syd syi syr sys syt tdd tdi tdo tdr tds tdt tdy tid tii tio tir tis tit tiy to- tod toi too tor tos tot toy trd tri tro trr trs trt try tsd tsi tso tsr tss tst tsy ttd tti tto ttr tts ttt tty tyd tyo tyr tys tyt ydo yds ydt ydy yid yii yio yir yis yit yod yoi yoo yor yos yot yoy yro yrs yrt ysi yso ysr yss yst ysy ytd yto ytr yts ytt yys yyt yyy