-ing dddd ddpo didi dido digg digi digo diii din- ding dini dinn dino dion diop dior dipn dipo dipp dird dirr dnpo dod- dodd dodg dodi dodo dog- dogg dogi dogo dogp doid doig doin dond dong doni donn dono donp donr dood doon doop door dopo dopp dopr dord dori dorn doro dorp dorr dpin dpni dprg drin drip drno drod drog dron drop gdor gggg ggpo ggrn gidd gidi gido gigg gigi gign gigo ging gini ginn gino giog gioi gion giop gipi gipp gird girg giri girn giro girr gnin gnip gnod gnoo gnrr godi godo gogi gogo goin goip gon- gond gong goni gonn gono good goog gooi goon goop goor gopi gopo gord gorg gori gorn goro gorp gorr gpgp gpip gprd gprp grid grig grin grip grni grod grog groi gron groo grop gror grrr i-go i-no iddo idgo idid idig idin idio idir idno idog idon idro igni igno igon igoo igor igri iiii iiio iino iioi iioo iiop ind- indi indo ingo inid inig inni inno innr ino- inoi inon inor inp- inpi inpp inri inro iod- iodd iodo ioii ioio ioni ionn iono iooi iooo iorg iori ipdi ipid ipin ipod ipop ippo ippr ipri irdo irdp iri- irid irig irin irio irip irod iron irop irri n-ii nddo ndnp ndop ndor ndpd ndpr ndri ngio ngon ngor ngri nidd nidi nido nigg nigo niip niir nind ning nini nino niog nion nioo nipr niro nngn nnnn nnpi nnpr nodi nodo nogg nogo noid noin noio noir non- nong noni nonn nono noo- noon nooo noop noor nor- nord norg nori norn noro norr npin nppd npri nron nrpn nrrd oddd oddi odin odio odir odon odoo odop odor odrp oggi ogin ogni ogod ogog ogoi ogon ogri ogro oido oigo oiii oion ondi ondo ongi ongo onir onni onno onod onon onor onpg oodi ooid oooo oord opii opin opio opng opo- opon opor oppi oppo ordn ordo orgn orgo ori- orid orig orin orio orni orno oro- oron oror orpi orri orro pdpn pdpr pgdn pido pigg pign pigo pigp piip pind ping pini pinn pino pinp pion pipi pipo pipp pirg piri pirn piro pirr pnin pnon pnpo pnpp pnro pod- podd podi podo pogg pogo poid poin poio pond pong poni pono ponp pood poon poop poor pop- popi popo popp porg pori porn poro porr ppgi ppid ppig ppod pppd pppn pppo pppp pri- prid prig prii prin prnd prnp pro- prod prog pron proo prop prpd prrd prri rdio ridd ridi rido rigg rigi rigo riin rind ring rinn rino rion ripd ripi ripp ripr riri rndp rnin rnod rodd rodi rodo rogg rogi rogo roid roig roin roio roir rond rong roni rono rood roog rooi roon roop roor ropo rori roro rpdp rpii rpon rppn rrrr