-ol bbb bbe bbg bbl bbn bbo bbs be- beb bee beg bel ben beo bes bgb bge bgg bgl bgn bgo bgs blb ble blg bll bln blo bls bnb bne bng bnl bnn bno bns bob boe bog bol bon boo bos bsb bse bsg bsl bsn bso bss ebb ebe ebg ebl ebn ebo ebs eeb eee eeg eel een eeo ees egb ege egg egl egn ego egs elb ele elg ell eln elo els en- enb ene eng enl enn eno ens eo- eob eoe eog eol eon eoo eos es- esb ese esg esl esn eso ess gbe gbg gbl gbn gbo gbs ge- geb gee geg gel gen geo ges ggb ggg ggn ggo ggs glb gle glg gll gln glo gls gnb gne gnl gnn gno gns gob goe gog gol gon goo gos gsb gse gsg gsl gsn gso gss lbb lbe lbg lbl lbo lbs leb lee leg lel len leo les lgb lge lgg lgl lgn lgo lgs llb lle llg lll lln llo lls lnb lne lng lnl lnn lno lns lob loe log lol lon loo los lsb lse lsg lsl lsn lso lss nbb nbe nbg nbl nbn nbo nbs ne- neb nee neg nel nen neo nes ngb nge ngg ngl ngn ngo ngs nlb nle nlg nll nln nlo nls nnb nne nng nnl nnn nno nns no- nob noe nog nol non noo nos nsb nse nsg nsl nsn nso nss ob- obb obe obg obl obn obo obs oeb oee oeg oel oen oeo oes oge ogg ogl ogn ogo ogs olb ole olg oll oln olo ols on- onb one ong onl onn ono ons oo- oob oog ool oon ooo oos os- osb ose osg osl osn oso oss sbb sbe sbg sbl sbn sbo sbs se- seb see seg sel sen seo ses sgb sge sgg sgl sgn sgo sgs slb sle slg sll sln slo sls snb sne sng snl snn sno sns sob soe sog sol son soo sos ss- ssb sse ssg ssl ssn sso sss