-th bbb bbh bbi bbk bbo bbr bbt bhb bhh bhi bhk bho bhr bht bi- bib bih bii bik bio bir bit bkb bkk bko bkr bkt bob boh boi bok boo bor bot brb brh bri brk bro brr brt btb bth bti btk bto btr btt h-i hbb hbh hbi hbk hbo hbr hbt hhb hhh hhi hhk hho hhr hht hib hih hii hik hio hir hit hkb hkh hki hkk hko hkr hkt hob hoh hoi hok hoo hor hot hr- hrb hrh hri hrk hro hrr hrt htb hth hti htk hto htr htt ibb ibh ibi ibk ibo ibr ibt ihb ihh ihi ihk iho ihr iht iib iih iii iio iir iit ikb iki ikk iko ikr ikt io- iob ioh ioi ioo ior iot ir- irb iri irk iro irr irt itb ith iti itk ito itt k-t kbb kbh kbi kbk kbo kbr khh khi khk kho khr kib kih kii kik kio kir kit kkb kkh kki kkk kkr kkt kob koh koi kok koo kor kot kri krk kro krr krt ktb kth ktk kto ktr ktt o-i ob- obb obh obi obk obo obr obt ohh ohi oho ohr oht oib oii oik oio oir oit okb oki okk oko okr oo- oob ooh ooi ook ooo oor oot or- orb orh ori ork oro orr ort ot- otb oth oti otk oto otr ott rbb rbh rbi rbk rbo rbr rbt rh- rhb rhh rhi rho rhr rht rib rih rii rik rio rir rit rkb rkk rko rkt rob roh roi rok roo ror rot rrb rrh rri rrk rrr rrt rtb rti rtk rto rtr rtt tbb tbh tbi tbk tbo tbr tbt th- thb thh thi thk tho thr tht tib tih tii tik tio tir tit tkb tkk tko tkr tkt to- tob toh toi tok too tor tot trb trh tri trk tro trr trt ttb tth tti ttk tto ttr ttt

bbbb bhir bhit bhoi bhor bhot bhrt bibb bibi bibo bihi bikh biko bio- bioi biot birb biri birk biro birr birt bith bito bitt bobb bobi bobo boho bohr boht boi- boii boit boki boko boob booh book boor boot bor- borh bori bork boro borr bort botb both boti boto bott brih brik brio brit brkb brob broh brok broo bror brot brrr btob btor btrt bttb h-ii hbio hbit hhhh hibi hibt hihi hiho hiht hiit hiki hiob hiri hirk hiro hirt hiti hito hitt hkir hobo hoho hoik hoir hoit hoki hoko hook hoor hoot hori hork horo horr hort hotb hoth hoti hoto hotr hott hrib hrit hrob hrtb htoh htrk httr ibot ibri ibro ibtb ihit ihob iiht iiii iiio iiit iioi iioo iitr iitt ikki ikko ikoo ikri iobi ioii ioio ioit ioko iooi iooo iori ioto iri- irio irki irob iroh irri irti itko itoh itoi itoo itor itri itto kbbb kbbi kbbk kbbo kbbr kbbt kbhb kbhh kbhi kbhr kbht kbib kbik kbio kbit kbkb kbkk kbko kbkr kbob kboi kbok kboo kbot kbrb kbrh kbri kbrk kbro kbrt kbtb kbtk kbto kbtr kbtt khbr khbt khhk khho khii khio khit khki khkk khkr khob khoi khok khor khot khri khrk khro khrr khrt khtb khth khti khtk khto khtr khtt kibb kibi kibo kibr kibt kihh kihi kihk kiho kihr kiht kiii kiik kiit kiki kikk kiko kikr kikt kioh kioi kiok kioo kiot kirb kiri kirk kiro kirr kirt kith kiti kito kitr kitt kkbb kkbi kkbo kkbr kkbt kkhb kkhh kkhi kkhk kkhr kkik kkit kkkk kkob kkoh kkoo kkor kkot kkrb kkrh kkrk kkro kkrr kkrt kktk kobb kobi kobk kobo kobr kohh kohi koho kohr koht koii koir koit kokb kokh koki kokk koko kokr koob kooi kook kooo koor koot korb kori kork koro korr kort kotb koth koti kotk koto kotr kott krbb krbi krbk krbr krbt krib krik krio krit krkh krki krkk krko krkr krob kroh kroi krok kroo kror krrb krri krrk krro krrr krrt krth krti krtk krto krtr ktbb ktbr ktbt kthh kthi kthk ktho kthr ktht ktib ktik ktkb ktkk ktko ktkr ktkt ktob ktoh ktok ktoo ktor ktot ktrb ktrh ktri ktrk ktro ktrr ktrt ktth ktti kttk ktto kttr kttt obbo obit obkb oboi obok obor obot obrh obri obro ohhi ohho ohio ohob ohoh ohok ohto oiii oiko oirt oiti okir okko okok okor okot okro okto oobi ooho oooh oooo oort ootb orbb orbi orbo ori- orio orit orko oro- orok oror orot orri orro orth orto otho othr otit oto- otoh otok otoo otor otro otti otto rbbb rbbr rboh rhib rhio rhob rhoh rib- ribo riho riht riki rikk riot riri rith riti rito ritt rob- robb robi robo robt rohr roik roio roir roit rokh roki rokk roko rokr roob rooi rook roor root rori rork roro rort roth roti rotk roto rotr rott rrrr rthk tbit tbrb thi- thik thio thir thoo thor thot thri thro thtb thtr tibi tiht tiit tiki tiko tirb tiri tiro tirr tith titi tito titt tobi tobo tobt tohi toho toit toki toko tooh took toor toot tori tork toro torr tort toth toti toto totr tott tri- trib trik trio trit troi troo trot trtr ttbb tttt

b-r-k bbook bhooi bhook bhoot bibbo bibio bibri bihor bikok bioko birth bitit bitki bitok bitti bitto bo-bo bo-ho bobbi bobik bobko bobok bobr bobri bohok bohor bohot bohri boiro boito bokit bokko bokok bokor booit booki booko boort booth borbo borik borio borko boro- borok boroo borot borro borth botok botro botti briot brith brito britt brobo brook broth broto brrrr btr-t h-bio h-iib hhhhh hi-hi hibhi hibit hibob hibor hibri hikki hikoi hiroi hiroo hirth hitit hitor hitto ho-ho ho-oh hobit hobor hobro hohot hokki hookt hoori hoort horii horio horki horro horth horti horto hothr hotot hotto hthrt i-bot i-rtk ibibo ibook iboth ibrik iiiii iitti ikobo ikoro iobit ioooi ioooo iorio