ddd ddi ddk ddn ddo dds ddt di- did dii dik din dio dis dit dki dkk dko dks dkt dnd dni dnk dnn dno dns dnt dod doi dok don doo dos dot dsd dsi dsk dsn dso dss dst dtd dti dtk dtn dto dts dtt i-d idd idi idk idn ido ids idt iid iii iin iio iis iit iki ikk iko iks ikt in- ind ini ink inn ino ins int io- iod ioi ion ioo ios iot is- isd isi isk isn iso iss ist itd iti itk itn ito its itt k-t kdk kdo kds kdt kid kii kik kin kio kis kit kki kkk kkn kks kkt kn- knd kni knk knn kno knt kod koi kok kon koo kos kot ksd ksi ksk ksn kso kss kst ktk ktn kto kts ktt n-i ndd ndi ndk ndn ndo nds ndt nid nii nik nin nio nis nit nki nkk nkn nko nks nkt nni nnk nnn nno nns nnt no- nod noi nok non noo nos not nsd nsi nsk nsn nso nss nst ntd nti ntk ntn nto nts ntt o-i odd odi odn odo ods odt oid oii oik oin oio ois oit okd oki okk oko oks on- ond oni onk onn ono ons ont oo- ood ooi ook oon ooo oos oot os- osd osi osk osn oso oss ost ot- otd oti otk otn oto ots ott sdd sdi sdk sdn sdo sds sdt sid sii sik sin sio sis sit sk- skd ski skk sko sks skt snd sni snk snn sno sns snt sod soi sok son soo sos sot ss- ssd ssi ssk ssn sso sss sst std sti stk stn sto sts stt tdd tdi tdk tdn tdo tds tdt tid tii tik tin tio tis tit tkk tko tks tkt tnd tni tnk tnn tno tns tnt to- tod toi tok ton too tos tot tsd tsi tsk tsn tso tss tst ttd tti ttk ttn tto tts ttt