gggg ggpo ggss gigg gigi gigo gigs giis giog gioi giop gipi gipp gips giss gogi gogo gogs goip gois goog gooi goop goos gopi gopo gops gosi goso goss gpgp gpip gpos gpsg gpsi gpso gpss gsis gsos i-go iggs igis igoo igso igsp iiii iiio iiis iioi iioo iiop iios iisi iisp ioii ioio iooi iooo ioos iops ioso ipop ipos ippo ipsi ipso ipsp ipss isis iso- isop isos isps issi isso issp isss oggi ogog ogoi ogsi oigo oiii oios oooo ooos oops oosi opii opio opis opo- opos oppi oppo opps opsi osgi osii osip osis osoi osoo osos ossi osso pgss pigg pigo pigp pigs piip pipi pipo pipp pips pisg pisi piso piss pogg pogo pogs poio pois poop poos pop- popi popo popp pops posi poso poss ppgi ppig ppos pppo pppp ppps ppss psgi psip psis psoi psos pspi pspp psps psso s-ii s-os sggg sggs sgio sgps sgss sigg sigi sigo sigs siop sios sipi sipo sipp sips sisi siss sogi sogo sogs sois soog soop soos sopi sopo sopp sops sosi soso soss spig spio spip spis spoo spop spos spps spso spsp spss ssgs ssis ssop sspo ssps sssi ssss