-th b-u bbb bbg bbh bbk bbo bbr bbt bbu bgb bgg bgh bgk bgo bgr bgt bgu bhb bhg bhh bhk bho bhr bht bhu bkb bkg bkk bko bkr bkt bob bog boh bok boo bor bot bou brb brg brh brk bro brr brt bru btb btg bth btk bto btr btt btu bub bug buh buk buo bur but buu gbg gbh gbk gbo gbr gbt gbu ggb ggg ggh ggo ggr ggt ggu ghb ghg ghh gho ghr ght gkb gkh gko gkt gob gog goh gok goo gor got gou grb grg grh grk gro grr grt gru gtb gtg gth gtk gto gtr gtt gtu gu- gub gug guk guo gur gut guu hbb hbg hbh hbk hbo hbr hbt hbu hgb hgg hgh hgk hgo hgr hgt hgu hhb hhg hhh hhk hho hhr hht hhu hkb hkg hkh hkk hko hkr hkt hku hob hog hoh hok hoo hor hot hou hr- hrb hrg hrh hrk hro hrr hrt hru htb htg hth htk hto htr htt hub hug huh huk huo hur hut huu k-t kbb kbh kbk kbo kbr kbu kgb kgh kgo kgu khh khk kho khr khu kkb kkh kkk kkr kkt kku kob kog koh kok koo kor kot kou krg krk kro krr krt kru ktb ktg kth ktk kto ktr ktt ktu kub kug kuh kuk kur kut kuu ob- obb obg obh obk obo obr obt obu ogg ogh ogo ogt ohg ohh oho ohr oht ohu okb okg okk oko okr oku oo- oob oog ooh ook ooo oor oot or- orb org orh ork oro orr ort oru ot- otb otg oth otk oto otr ott otu ou- ouh ouk ouo our out rbb rbg rbh rbk rbo rbr rbt rbu rgb rgg rgh rgk rgo rgr rgt rh- rhb rhg rhh rho rhr rht rhu rkb rkg rkk rko rkt rku rob rog roh rok roo ror rot rou rrb rrg rrh rrk rrr rrt rru rtb rtg rtk rto rtr rtt rtu rub rug ruh ruk ruo rur rut ruu tbb tbg tbh tbk tbo tbr tbt tbu tgb tgg tgh tgk tgo tgr tgt tgu th- thb thg thh thk tho thr tht thu tkb tkg tkk tko tkr tkt to- tob tog toh tok too tor tot tou trb trg trh trk tro trr trt tru ttb ttg tth ttk tto ttr ttt ttu tub tug tuh tuk tuo tur tut tuu ubb ubg ubh ubk ubo ubr ubt ubu ugb ugg ugh ugk ugo ugr ugt ugu uhb uhh uho uhr uht uhu ukb ukk ukr uku uob uog uok uoo uor uot ur- urb urg urk uro urr urt uru utb uth utk uto utr utt utu uug uur uut uuu

-hou bbbb bbrg bght bhog bhor bhot bhrt bhur bhut bhuu bobb bobo bobu bogg bogh bogo bogt boho bohr boht bohu boko boku boob boog booh book boor boot bor- borg borh bork boro borr bort boru botb both boto bott bouh bouk bour bout brkb brob brog broh brok broo bror brot brou brrr brug bruh brut btob btor btrt bttb bubb bubo bubu bugg bugh bugo buho buhr bukh bukk buko buku bur- burb burg burh burk buro burr burt buru but- buto butt gbbo ggbt gggg gghg ghug gobo gogh gogo gohb goku goog gook goor goot gorb gorg goro gorr gort goth goto gott gou- goug gouk gour gout grbr grob grog groh grok groo gror grot grou grrr grub grug grur grut gtbr gubb gubu gugb gugg gugh gugu guhr gurb gurg gurh gurk guro gurr gurt guru guth guto gutt gutu hbtu hhgg hhhh hkbu hobo hogg hogh hogo hogu hoho hoko hoku hook hoor hoot horg hork horo horr hort hotb hoth hoto hotr hott hotu houk hour hout hrob hrtb htoh htrk httr hubb hubo hugg hugh hugo huhu huor huot hurk huro hurr hurt huru huth huto hutt hutu huub kbbb kbbg kbbk kbbo kbbr kbbt kbbu kbgb kbgg kbgh kbgo kbgr kbgt kbhb kbhh kbhr kbht kbkb kbkg kbkk kbko kbkr kbob kbok kboo kbot kbrb kbrg kbrh kbrk kbro kbrt kbru kbtb kbtk kbto kbtr kbtt kbub kbuk kbur kbut kbuu kgbb kgbr kgbt kggg kggo kggr kghr kght kgor kgot kgou kgrb kgrg kgrk kgro kgrr kgrt kgtk kgto khbr khbt khgg khhg khhk khho khkk khkr khob khok khor khot khou khrk khro khrr khrt khtb khth khtk khto khtr khtt khub khug khuk khur khut kkbb kkbg kkbo kkbr kkbt kkgb kkgo kkgr kkhb kkhh kkhk kkhr kkkk kkob kkoh kkoo kkor kkot kkrb kkrh kkrk kkro kkrr kkrt kktk kktu kkut kkuu kobb kobk kobo kobr kobu kogb kogg kogh kogo kogt kogu kohh koho kohr koht kohu kokb kokh kokk koko kokr koku koob koog kook kooo koor koot koou korb korg kork koro korr kort koru kotb koth kotk koto kotr kott kotu koub kour kout kouu krbb krbg krbk krbr krbt krgt krkh krkk krko krkr krku krob krog kroh krok kroo kror krrb krrg krrk krro krrr krrt krth krtk krto krtr krug kruh kruk krur ktbb ktbg ktbr ktbt ktbu ktgg ktgo ktgr kthh kthk ktho kthr ktht kthu ktkb ktkk ktko ktkr ktkt ktku ktob ktoh ktok ktoo ktor ktot ktrb ktrg ktrh ktrk ktro ktrr ktrt ktru kttg ktth kttk ktto kttr kttt kttu ktub ktug ktuh kubb kubo kubr kubu kugb kugo kugr kuht kuhu kukh kukk kuku kuok kuoo kurb kurk kuro kurr kurt kuru kuth kuto kutr kutt kutu kuub kuuk kuur kuuu obbo obkb obok obor obot obrh obro obuh ogb oght ogog ogou ogro ohgr ohho ohob ohoh ohok ohto ohtu okgo okko okok okor okot okro okto okur ooho ooku oooh oooo oort ootb orbb orbo orbu orgo orko oro- orok oror orot orro orth orto orub otho othr oto- otog otoh otok otoo otor otro otto ottu otur ough our- ouro ourt out- outb