b-u bbb bbd bbg bbm bbo bbr bbu bdb bdd bdg bdm bdo bdr bdu bgb bgd bgg bgm bgo bgr bgu bmb bmd bmg bmm bmo bmr bmu bob bod bog bom boo bor bou brb brd brg brm bro brr bru bub bud bug bum buo bur buu dbb dbd dbg dbm dbo dbr dbu ddb ddd ddg ddm ddo ddr ddu dgd dgg dgm dgr dgu dmb dmd dmg dmm dmo dmr dmu dob dod dog dom doo dor dou drb drd drg drm dro drr dru dub dud dug dum duo dur g-d gbd gbg gbm gbo gbr gbu gdb gdd gdm gdo gdr gdu ggb ggd ggg ggm ggo ggr ggu gmb gmd gmg gmm gmo gmr gob god gog gom goo gor gou grb grd grg grm gro grr gru gu- gub gud gug gum guo gur guu m-o m-r mbb mbd mbg mbm mbo mbr mbu mdb mdd mdg mdm mdo mdr mdu mgb mgd mgm mgo mgr mgu mmb mmd mmg mmm mmo mmr mmu mob mod mog mom moo mor mou mrb mrd mrg mrm mro mrr mru mub mud mug mum mur muu ob- obb obd obg obm obo obr obu odb odd odg odm odo odr odu ogd ogg ogo om- omb omd omg omm omo omr omu oo- oob ood oog oom ooo oor or- orb ord org orm oro orr oru ou- oud oum ouo our rbb rbd rbg rbm rbo rbr rbu rdb rdd rdg rdm rdo rdr rdu rgb rgd rgg rgo rgr rmb rmd rmg rmm rmo rmr rob rod rog rom roo ror rou rrb rrd rrg rrm rrr rru rub rud rug rum ruo rur ruu ubb ubg ubo ubr ubu udb udd udg udm udo udr udu ugb ugg ugm ugo ugr ugu um- umb umd umg umm umo umr umu uob uod uog uom uoo uor ur- urb urd urg urm uro urr uru uug uum uur uuu