-ing bbbb bbin bbng bbrg bibb bibi bigb bigg bign bigt biin bin- bing bini binn bint birb birg biri birn birr birt bitt bnib bnin bnrr brig brin brit brrr btrt bttb ggbt gggg ggrn gibb gigg gigi gign ging gini ginn girg giri girn girr girt gnib gnin gnit gnrr gnti grbr grib grig grin grit grni grrr gtbr ibri ibtb igni igri iiii iiit iitr iitt inig init inni innr inri intg inti intn intr iri- irig irin irri irti itin itri n-ii nbti ngri ngtn nibi nigg nigt niir niit ning nini nirt nitb niti nitr nngn nnit nnnn nntn nttr rbbb rbbr rgbi rgit rgtr rib- rigg rigi riin ring rinn riri riti ritt rnbr rnin rnnt rrrr tbit tbrb tibi tigi tigr tiit ting tini tinn tint tirb tiri tirr titi titt tri- trib trig trin trit trng trtr ttbb tttt