bbbb bbdd bblb bbrg bd-r bdii bibb bibi bibl bidi bidr bigb bigd bigg bigt bild bili bill bilt birb bird birg biri birl birr birt bitd bitt blbt bldg bldr blir blit blrg brdt brid brig bril brit brrr btdt btrt bttb dbit dbtt dddd dibb didi digg digi diii dili dill dird dirl dirr dirt diti ditt dlbd dlib dlii dlil dlit dlrg drib dril drit dtrl gddb gdrt ggbt gggg gibb gidd gidi gidl gigg gigi gild gilg gili gill gilt gird girg giri girl girr girt gli- glib glid glit glrb grbr grib grid grig gril grit grrl grrr gtbr gtld ibid ibrd ibri ibtb ibtl idid idig idil idir idli igil igli igri iiii iiit iitr iitt ilir ilit ill- illd illi illt iri- irid irig iril irlb irri irti itil itll itri lbgt lblr lbrt lgbt lgdt libr lidb lidl ligg ligi liig liii liir lilb lilg lili lill lilt lird lirg liri lirl lirr lirt litb litd liti litl litr litt lldb llll lrdd lrdg lrgb lrrr ltbl ltib lttr rbbb rbbr rgbi rgit rgtr rib- ridd ridi rigg rigi rill riri riti ritl ritt rldt rrrr rtdt rtlt tbil tbit tbrb tddb tdil tdri tibi tidd tigi tigr tiit tild till tilr tilt tirb tird tiri tirl tirr titi titt tldr tlli tri- trib trig tril trit trtr ttbb tttt