-ol bbb bbl bbo bbs bbt bjj bjs bjt blb blj bll blo bls blt bob boj bol boo bos bot bsb bsj bsl bso bss bst btb btl bto bts btt jbj jbl jbo jbs jbt jjb jjj jjl jjs jlb jll jlo jls jlt job joj jol joo jos jot jsb jsj jsl jso jss jst jtb jtl jts jtt lbb lbj lbl lbo lbs lbt ljj ljs llb llj lll llo lls llt lob loj lol loo los lot lsb lsj lsl lso lss lst ltb ltl lto lts ltt ob- obb obj obl obo obs obt ojb ojo ojs olb oll olo ols olt oo- oob ool ooo oos oot os- osb osj osl oso oss ost ot- otb otl oto ots ott sbb sbj sbl sbo sbs sbt sjb sjj sjs sjt slb slj sll slo sls slt sob soj sol soo sos sot ss- ssb ssj ssl sso sss sst stb stj stl sto sts stt tbb tbj tbl tbo tbs tbt tjo tjs tlj tll tlo tls tlt to- tob toj tol too tos tot tsb tsj tsl tso tss tst ttb ttl tto tts ttt