-ic bbb bbc bbg bbi bbn bbo bbr bbs bby bcb bcc bcg bci bcn bco bcr bcs bcy bgb bgc bgg bgi bgn bgo bgr bgs bi- bib bic big bii bin bio bir bis biy bnb bnc bng bni bnn bno bnr bns bob boc bog boi bon boo bor bos boy brb brg bri brn bro brr brs bry bsb bsc bsg bsi bsn bso bsr bss bsy by- byc byg byi byn byo byr bys c-- cbb cbc cbg cbi cbn cbo cbr cbs cby ccb ccc ccg cci ccn cco ccr ccs cgb cgc cgg cgi cgn cgo cgr cgs cgy ci- cib cic cig cii cin cio cir cis cn- cnb cnc cng cni cnn cno cnr cns cny co- cob coc cog coi con coo cor cos coy crb crc crg cri crn cro crr crs cry csb csc csg csi csn cso csr css csy cyb cyc cyg cyn cyo cyr cys gbc gbg gbi gbn gbo gbr gbs gby gcb gcc gcg gci gcn gco gcr gcs ggb ggc ggg ggi ggn ggo ggr ggs gib gic gig gii gin gio gir gis giy gnb gnc gni gnn gno gnr gns gob goc gog goi gon goo gor gos goy grb grc grg gri grn gro grr grs gry gsb gsc gsg gsi gsn gso gsr gss gy- gyb gyn gyo gyr gys ibb ibc ibg ibi ibn ibo ibr ibs iby icb icc icg ici icn ico icr ics icy igb igc igg igi ign igo igr igs igy iib iic iii iin iio iir iis in- inb inc ing ini inn ino inr ins iny io- iob ioc iog ioi ion ioo ior ios ir- irb irc irg iri irn iro irr irs iry is- isb isc isg isi isn iso isr iss isy iyc iyo iyr iys iyy n-i nbb nbc nbg nbi nbn nbo nbr nbs ncb ncc ncg nci ncn nco ncr ncs ngb ngc ngg ngi ngn ngo ngs nib nic nig nii nin nio nir nis nnb nnc nng nni nnn nno nns no- nob noc nog noi non noo nor nos noy nrb nrc nrg nri nrn nro nrr nrs nry nsb nsc nsg nsi nsn nso nsr nss nsy nyc nyg nyn nyo nys nyy o-i ob- obb obc obg obi obn obo obr obs oby oc- ocb occ ocg oci ocn oco ocr ocs ogc ogg ogi ogn ogo ogs ogy oib oic oii oin oio oir ois on- onb onc ong oni onn ono onr ons ony oo- oob ooc oog ooi oon ooo oor oos or- orb orc org ori orn oro orr ors ory os- osb osc osg osi osn oso osr oss oyi oyo oys rbb rbc rbg rbi rbn rbo rbr rbs rcb rcc rcg rci rcn rco rcr rcs rgb rgc rgg rgi rgn rgo rgr rgs rib ric rig rii rin rio rir ris riy rnb rnc rng rni rnn rno rnr rns rny rob roc rog roi ron roo ror ros roy rrb rrc rrg rri rrn rrr rrs rsb rsc rsg rsi rsn rso rsr rss ry- ryc ryg ryn ryo ryr rys ryy sbb sbc sbg sbi sbn sbo sbr sbs sby scb scc scg sci scn sco scr scs sgb sgc sgg sgi sgn sgo sgr sgs sib sic sig sii sin sio sir sis snb snc sng sni snn sno snr sns sny sob soc sog soi son soo sor sos soy sr- srb src srg sri srn sro srr srs sry ss- ssb ssc ssg ssi ssn sso ssr sss sy- syb syc syg syi syn syr sys ybc ybg ybi ybr ybs yby ycc yci yco ycs ycy ygc ygo yig yii yin yio yir yis yng ynn yns yny yob yoc yog yoi yon yoo yor yos yoy yrc yrg yrn yro yrs ysb ysc ysg ysi yso ysr yss ysy yyb yyc yyg yys yyy