bbb bbg bbn bbo bbs bby bgb bgg bgn bgo bgs bnb bng bnn bno bns bob bog bon boo bos boy bsb bsg bsn bso bss bsy by- byg byn byo bys gbg gbn gbo gbs gby ggb ggg ggn ggo ggs gnb gnn gno gns gob gog gon goo gos goy gsb gsg gsn gso gss gy- gyb gyn gyo gys nbb nbg nbn nbo nbs ngb ngg ngn ngo ngs nnb nng nnn nno nns no- nob nog non noo nos noy nsb nsg nsn nso nss nsy nyg nyn nyo nys nyy ob- obb obg obn obo obs oby ogg ogn ogo ogs ogy on- onb ong onn ono ons ony oo- oob oog oon ooo oos os- osb osg osn oso oss oyo oys sbb sbg sbn sbo sbs sby sgb sgg sgn sgo sgs snb sng snn sno sns sny sob sog son soo sos soy ss- ssb ssg ssn sso sss sy- syb syg syn sys ybg ybs yby ygo yng ynn yns yny yob yog yon yoo yos yoy ysb ysg yso yss ysy yyb yyg yys yyy