bbb bbg bbm bbo bbx bby bgb bgg bgm bgo bgx bmb bmg bmm bmo bmx bob bog bom boo box boy bxb bxm bxo bxx by- byg bym byo gbg gbm gbo gbx gby ggb ggg ggm ggo gmb gmg gmm gmo gmx gmy gob gog gom goo gox goy gy- gyb gym gyo m-o mbb mbg mbm mbo mbx mgb mgm mgo mgx mgy mmb mmg mmm mmo mmx mob mog mom moo mox moy my- myb myg mym myo myx ob- obb obg obm obo obx oby ogg ogo ogx ogy om- omb omg omm omo omx omy oo- oob oog oom ooo oox ox- oxb oxo oxx oxy oyo xbx xmg xmm xmo xmx xog xom xoo xox xxo xxx xxy xyy ybg ybm yby ygm ygo ymg ymm ymo yob yog yom yoo yox yoy yxy yyb yyg yyy