ddd ddi ddo ddt di- did dii dio dit div dod doi doo dot dov dtd dti dto dtt dtv dvd dvi dvt i-d i-v idd idi ido idt idv iid iii iio iit io- iod ioi ioo iot iov itd iti ito itt itv ivd ivi ivo ivt ivv o-i odd odi odo odt odv oid oii oio oit oiv oo- ood ooi ooo oot oov ot- otd oti oto ott otv ov- ovd ovi ovo ovv tdd tdi tdo tdt tdv tid tii tio tit tiv to- tod toi too tot tov ttd tti tto ttt ttv tvd tvi tvo tvt vdd vdi vdo vdt vdv vi- vid vii vio vit viv vod voi voo vot vov vti vto vtt vtv vvi vvo vvt vvv