-ol b-u bbb bbd bbl bbm bbn bbo bbu bdb bdd bdl bdm bdo bdu blb bld bll blm bln blo blu bmb bmd bml bmm bmn bmo bmu bnb bnd bnl bnn bno bnu bob bod bol bom bon boo bou bub bud bul bum bun buo buu dbb dbd dbl dbm dbn dbo dbu ddb ddd ddl ddm ddn ddo ddu dl- dlb dld dll dlm dlo dlu dmb dmd dml dmm dmn dmo dmu dnb dnd dnl dnm dnn dno dob dod dol dom don doo dou dub dud dul dum dun duo lbb lbd lbl lbm lbo lbu ldb ldd ldl ldm ldn ldo ldu llb lld lll llm lln llo llu lmb lmd lml lmm lmn lmo lmu lnb lnd lnl lnm lnn lno lnu lob lod lol lom lon loo lou lub lud lul lum lun luo luu m-o mbb mbd mbl mbm mbo mbu mdb mdd mdl mdm mdn mdo mdu mlb mld mll mlm mln mlo mlu mmb mmd mml mmm mmn mmo mmu mnb mnl mnm mnn mno mnu mob mod mol mom mon moo mou mub mud mul mum mun muu nbb nbd nbl nbm nbn nbo nbu ndb ndd ndl ndm ndn ndo ndu nlb nld nll nlm nln nlo nlu nmb nmd nml nmm nmn nmo nmu nnb nnl nnm nnn nno nnu no- nob nod nol nom non noo nou nub nud nul num nun nuo nuu ob- obb obd obl obm obn obo obu odb odd odl odm odn odo odu olb old oll olm oln olo olu om- omb omd oml omm omn omo omu on- onb ond onl onn ono onu oo- oob ood ool oom oon ooo ou- oud oul oum oun ouo ubb ubl ubn ubo ubu udb udd udl udm udn udo udu ulb uld ull ulm uln ulo ulu um- umb umd uml umm umn umo umu un- unb und unl unm unn uno unu uob uod uol uom uon uoo uum uun uuu