bbb bbn bbo bbr bbt bjj bjn bjr bjt bnb bnj bnn bno bnr bnt bob boj bon boo bor bot brb brj brn bro brr brt btb btn bto btr btt jbj jbo jbr jbt jjb jjj jjr jnj jnn jno jnr jnt job joj jon joo jor jot jrb jrn jro jrr jrt jtb jtn jtr jtt nbb nbn nbo nbr nbt njn nnb nnn nno nnt no- nob noj non noo nor not nrb nrj nrn nro nrr nrt ntb ntn nto ntr ntt ob- obb obj obn obo obr obt ojb ojo on- onb onj onn ono onr ont oo- oob oon ooo oor oot or- orb orn oro orr ort ot- otb otn oto otr ott rbb rbn rbo rbr rbt rjr rnb rnn rno rnr rnt rob roj ron roo ror rot rrb rrn rrr rrt rtb rtj rtn rto rtr rtt tbb tbj tbn tbo tbr tbt tjo tjr tnb tnn tno tnr tnt to- tob toj ton too tor tot trb trn tro trr trt ttb ttn tto ttr ttt