dddd didi dido dif- diff diii din- dini dinn dino dion dod- dodd dodi dodo doff doid doin dond doni donn dono dood doof doon ffff ffii fidf fido fiff fifi fifo fiii find fini finn fino fion fndd fndn fofo foid foin fond fono food foof foon i-no iddo idid idin idio idno idon ifid ifni ifno iiii iiio iino iioi iioo ind- indi indo infi info inid inni inno ino- inoi inon iod- iodd iodo ioii ioio ioni ionn iono ioof iooi iooo n-ii nddo ndfi nfff nfon nidd nidi nido niff nind nini nino nion nioo nnnn nodi nodo nofi noid noif noin noio non- noni nonn nono noo- noon nooo oddd oddi odin odio odon odoo off- offo ofid ofno oido oiii oion ondi ondo onni onno onod onon oodi ooff ooid oooo