bbbb bblb bhor bhot bhrt blbt blno blob blon bloo blot bnor bnrr bobb bobo bohl bohn boho bohr boht boll boln bolo bolt bonn bono bont boob booh bool boon boor boot bor- borh born boro borr bort botb both botn boto bott brno brob broh brol bron broo bror brot brrr btob btor btrt bttb hbtl hhhh hntb hntr hobo hohl hohn hoho hol- holb holh holl holn holo holt hono hont hool hoon hoor hoot horl horn horo horr hort hotb hoth hotl hoto hotr hott hrbl hrob hron hrtb htoh htol httr lblr lbrt lhhh lhor llll lloo lob- lobb lobh lobo lohn loho lohr loll lolo lono lonr lont loob lool loon loor loot lorn loro loth lotl loto lotr lott lron lrrr ltbl lthn lthr ltnt lttr nbbo nhhl nhnn nhon nlrb nnnn nnot nntn nobo nohn noho noht noll nolo nolt non- nonn nono nont noo- noob nool noon nooo noor noot nor- norb norn noro norr nort not- noth noto nott nrlb nron nrrl nrtl nthn ntht ntrl ntto nttr obbo obol obon obor obot obrh obro ohho ohno ohob ohoh ohrn ohto olbo ollo olon olor olot onno onon onor ont- onto ooho oolo oont oooh oooo oort ootb orbb orbo orlo orno oro- oron oror orot orro orth orto otho othr oto- otoh oton otoo otor otro otto rbbb rbbr rboh rhob rhoh rhon rnbr rnhl rnnt rnot rob- robb robo robt rohl rohn rohr roll rolo rolt rono ront roob rool roon roor root roro rort roth rotl rotn roto rotr rott rrrr rtlt tbrb thnt thon thoo thor thot thro thtb thtr tlon tobo tobt toho tol- toll tolo tolt tonb tonh tonn tono tooh tool toon toor toot torn toro torr tort toth toto totr tott trno tron troo trot trtr ttbb tton tttt