b-u bbb bbo bbs bbt bbu bby bjj bjs bjt bju bob boj boo bos bot bou boy bsb bsj bso bss bst bsu bsy btb bto bts btt btu bty bub buj buo bus but buu buy by- byj byo bys byt byu jbj jbo jbs jbt jbu jjb jjj jjs jju jjy job joj joo jos jot jou joy jsb jsj jso jss jst jsu jsy jtb jts jtt jtu jty jub juo jus jut juy jyj jys ob- obb obj obo obs obt obu oby ojb ojo ojs oju ojy oo- oob ooo oos oot os- osb osj oso oss ost osu ot- otb oto ots ott otu ou- ouo ous out oyo oys sbb sbj sbo sbs sbt sbu sby sjb sjj sjs sjt sju sob soj soo sos sot sou soy ss- ssb ssj sso sss sst ssu stb stj sto sts stt stu sty sub suo sus sut suu suy sy- syb sys syt syu tbb tbj tbo tbs tbt tbu tjo tjs tju to- tob toj too tos tot tou toy tsb tsj tso tss tst tsu tsy ttb tto tts ttt ttu tty tub tuj tuo tus tut tuu tuy tyo tys tyt ubb ubo ubs ubt ubu uby ujo ujs uob uoj uoo uos uot usb usj uso uss ust usu utb utj uto uts utt utu uty uus uut uuu uyo uys uyu ybs yby yob yoj yoo yos yot you yoy ysb ysj yso yss yst ysu ysy yto yts ytt ytu yuj yuo yus yut yuu yuy yyb yys yyt yyu yyy