ddd ddi ddo ddr dds ddt di- did dii dio dir dis dit div dod doi doo dor dos dot dov drd dri dro drr drs drt drv dsd dsi dso dsr dss dst dsv dtd dti dto dtr dts dtt dtv dvd dvi dvr dvs dvt i-d i-v idd idi ido idr ids idt idv iid iii iio iir iis iit io- iod ioi ioo ior ios iot iov ir- ird iri iro irr irs irt irv is- isd isi iso isr iss ist isv itd iti ito its itt itv ivd ivi ivo ivr ivs ivt ivv o-i odd odi odo odr ods odt odv oid oii oio oir ois oit oiv oo- ood ooi ooo oor oos oot oov or- ord ori oro orr ors ort orv os- osd osi oso osr oss ost osv ot- otd oti oto otr ots ott otv ov- ovd ovi ovo ovs ovv rdd rdi rdo rdr rds rdt rdv rid rii rio rir ris rit riv rod roi roo ror ros rot rov rrd rri rrr rrs rrt rsd rsi rso rsr rss rst rsv rtd rti rto rtr rts rtt rtv rvd rvi rvo rvr rvs rvt rvv sdd sdi sdo sdr sds sdt sdv sid sii sio sir sis sit siv sod soi soo sor sos sot sov sr- srd sri sro srr srs srt srv ss- ssd ssi sso ssr sss sst ssv std sti sto str sts stt stv svd svi svo svr svs svt svv tdd tdi tdo tdr tds tdt tdv tid tii tio tir tis tit tiv to- tod toi too tor tos tot tov trd tri tro trr trs trt trv tsd tsi tso tsr tss tst tsv ttd tti tto ttr tts ttt ttv tvd tvi tvo tvr tvs tvt vdd vdi vdo vdr vds vdt vdv vi- vid vii vio vir vis vit viv vod voi voo vor vos vot vov vrd vri vrr vrs vrt vsd vsi vso vsr vss vst vsv vti vto vtr vts vtt vtv vvi vvo vvr vvs vvt vvv