-ing bbbb bbdd bbdo bbin bbng bdii bdin bdog bgdv bgon bibb bibi bibo bidi bido bigb bigd bigg bign bigo biin bin- bind bing bini binn bino bio- biog bioi bion bivi bnib bnin bobb bobi bobo bodb bodi bodo bogd bogg bogi bogo boi- boid boii boin bond bong boni bonn bono boob bood boog boon bovi bovo d-bo dddd dibb dibo didi dido digg digi digo diii diiv din- ding dini dinn dino dion divd divi divo dobb dobi dod- dodd dodg dodi dodo dog- dogg dogi dogo doid doig doin dond dong doni donn dono doob dood doon dovi dvi- dvii dvin dvno gbbo gbon gddb gdov gggg gibb gidd gidi gido gigg gigi gign gigo ging gini ginn gino giog gioi gion gnib gnin gnod gnoo gobi gobo godi godo gogi gogo goin gon- gond gong goni gonn gono good goog gooi goon govi gvvv i-go i-no ibdo ibid ibon iddo idgo idid idig idin idio idno idog idon idvd igbo igni igno igon igoo iiii iiio iino iioi iioo inbd inbo ind- indi indo ingo inid inig inni inno ino- inoi inon iobi iod- iodd iodo ioii ioio ioni ionn iono iooi iooo ivbv ivig ivin ivod ivon n-ii nbbo nddb nddo ngio ngon nibi nibo nidd nidi nido nigg nigo nind ning nini nino niog nion nioo nivo nndb nngn nnnn nobi nobo nodi nodo nogg nogo noib noid noin noio non- nong noni nonn nono noo- noob noon nooo noov nov- novi novo obbo obid obin oboi obon obvi odbo oddd oddi odin odio odnb odon odoo ogb oggi ogin ogni ogod ogog ogoi ogon oido oigo oiii oion ondi ondo ongi ongo onni onno onod onon oobi oodi ooid oooo ovi- ovid ovni ovo- ovod ovon ovoo vdio vidi vido vigo viii vind ving vini vino vion vivi vivo vnbg vodo void voin voio vond voni vonn voog vvob vvog vvvv