bbbb bbbs bggs bibb bibi bibo bibs bigb bigg bigo bigs biis bio- biog bioi bios bipp bips bis- biso bisp biss bobb bobi bobo bobs bogg bogi bogo bogs boi- boii bois boob boog boop boos bopp bops bosi boso boss bsgs bsos bspp gbbo gbbs gggg ggpo ggss gibb gibs gigg gigi gigo gigs giis giog gioi giop gipi gipp gips giss gobi gobo gobs 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 ibis ibos ibss igbo iggs igis igoo igso igsp iiii iiio iiis iioi iioo iiop iios iisi iisp iobi ioii ioio iooi iooo ioos iops ioso ipop ipos ippo ipsi ipso ipsp ipss isis iso- isop isos isps issi isso issp isss obbo obis oboi obos obss ogb oggi ogog ogoi ogsi oigo oiii oios oobi oooo ooos oops oosi opii opio opis opo- opos oppi oppo opps opsi osbp osgi osii osip osis osoi osoo osos ossb ossi osso pbsp pgib pgss pibb pibi pigb pigg pigo pigp pigs piip piob pipi pipo pipp pips pisg pisi piso piss pobo pobs pogg pogo pogs poio pois poop poos pop- popi popo popp pops posb posi poso poss ppgi ppib ppig ppos pppo pppp ppps ppss psgi psip psis psoi psos pspi pspp psps psso s-ib s-ii s-os sbbs sbig sbsi sbsp sggg sggs sgio sgps sgss sibi sibo sibs sigg sigi sigo sigs siop sios sipi sipo sipp sips sisi siss sobo sobp sobs sogi sogo sogs sois soog soop soos sopi sopo sopp sops sosi soso soss spgb spib spig spio spip spis spoo spop spos spps spso spsp spss ssgs ssis ssop sspo ssps sssb sssi ssss