-ing bbbb bbin bbng bibb bibi bigb bigg bign bigt biin bin- bing bini binn bint bitt bivi bnib bnin bttb btvi ggbt gggg gibb gigg gigi gign ging gini ginn gnib gnin gnit gnti gntv gvtv gvvv ibtb igni iiii iiit iitt inig init inni intg inti intn invt itin ivbv ivig ivin n-ii n-tv nbti ngtn ngtv nibi nigg nigt niit ning nini nitb niti nngn nnit nnnn nntn nnvt nttv ntvg nvtv tbit tbvi tibi tigi tiit ting tini tinn tint titi titt tivi ttbb tttt tvbn tvnb tvni tvtv viii ving vini vint vitg viti vitt vivi vnbg vt-i vvvv