ddd ddi ddo dds ddy di- did dii dio dis diy dod doi doo dos doy dsd dsi dso dss dsy dy- dyd dyo dys dyy i-d idd idi ido ids idy iid iii iio iis io- iod ioi ioo ios is- isd isi iso iss isy iyo iys iyy o-i odd odi odo ods oid oii oio ois oo- ood ooi ooo oos os- osd osi oso oss oyd oyi oyo oys sdd sdi sdo sds sdy sid sii sio sis sod soi soo sos soy ss- ssd ssi sso sss sy- syd syi sys ydo yds ydy yid yii yio yis yod yoi yoo yos yoy ysi yso yss ysy yys yyy