b-u bbb bbk bbl bbq bbr bbt bbu bkb bkk bkl bkq bkr bkt blb blk bll blq blr blt blu blz bqt brb brk brl brq brr brt bru brz btb btk btl btq btr btt btu btz bub buk bul bur but buu buz bzr bzu bzz k-t k-z kbb kbk kbl kbr kbu kbz kkb kkk kkl kkr kkt kku kl- klb klq klr klt klu klz kql krk krl krr krt kru ktb ktk ktl ktr ktt ktu kub kuk kul kur kut kuu lbb lbk lbl lbr lbt lbu lkb lkl lkr lkt llb llk lll llq llr llt llu llz lqr lrb lrk lrr lrt lru lrz ltb ltk ltl ltr ltt ltu ltz lub luk lul lur lut luu luz lzr lzu qbq qqk qqq qqu qrb qrl qrt qru qtq qtr qtz qu- qul qur qut rbb rbk rbl rbr rbt rbu rkb rkk rkt rku rkz rll rlr rlt rlu rrb rrk rrl rrq rrr rrt rru rtb rtk rtl rtq rtr rtt rtu rtz rub ruk rur rut ruu ruz rzb tbb tbk tbl tbr tbt tbu tbz tkb tkk tkl tkr tkt tkz tlk tll tlr tlt tlu tlz trb trk trl trq trr trt tru trz ttb ttk ttl ttr ttt ttu tub tuk tul tur tut tuu tuz tzu ubb ubk ubl ubr ubt ubu ukb ukk ukl ukr uku ukz ulb ulk ull ulr ult ulu ur- urb urk url urr urt uru urz utb utk utl utr utt utu utz uur uut uuu uzb uzu zbb zbl zbr zbt zlr zlt zrl ztl ztr zub zuk zul zur zut zuz zzr zzt zzz