-ol bbb bbg bbl bbm bbn bbo bbr bgb bgg bgl bgm bgn bgo bgr blb blg bll blm bln blo blr bmb bmg bml bmm bmn bmo bmr bnb bng bnl bnn bno bnr bob bog bol bom bon boo bor brb brg brl brm brn bro brr gbg gbl gbm gbn gbo gbr ggb ggg ggm ggn ggo ggr glb glg gll glm gln glo glr gmb gmg gml gmm gmn gmo gmr gnb gnl gnm gnn gno gnr gob gog gol gom gon goo gor grb grg grl grm grn gro grr lbb lbg lbl lbm lbo lbr lgb lgg lgl lgm lgn lgo lgr llb llg lll llm lln llo llr lmb lmg lml lmm lmn lmo lmr lnb lng lnl lnm lnn lno lnr lob log lol lom lon loo lor lrb lrg lrm lrn lro lrr m-o m-r mbb mbg mbl mbm mbo mbr mgb mgl mgm mgn mgo mgr mlb mlg mll mlm mln mlo mlr mmb mmg mml mmm mmn mmo mmr mnb mng mnl mnm mnn mno mnr mob mog mol mom mon moo mor mrb mrg mrl mrm mrn mro mrr nbb nbg nbl nbm nbn nbo nbr ngb ngg ngl ngm ngn ngo nlb nlg nll nlm nln nlo nlr nmb nmg nml nmm nmn nmo nmr nnb nng nnl nnm nnn nno no- nob nog nol nom non noo nor nrb nrg nrl nrm nrn nro nrr ob- obb obg obl obm obn obo obr ogg ogl ogn ogo olb olg oll olm oln olo om- omb omg oml omm omn omo omr on- onb ong onl onn ono onr oo- oob oog ool oom oon ooo oor or- orb org orl orm orn oro orr rbb rbg rbl rbm rbn rbo rbr rgb rgg rgn rgo rgr rlg rll rlm rln rlo rlr rmb rmg rml rmm rmn rmo rmr rnb rng rnm rnn rno rnr rob rog rol rom ron roo ror rrb rrg rrl rrm rrn rrr