-ic -ol bbb bbc bbg bbi bbl bbn bbo bbt bcb bcc bcg bci bcl bcn bco bct bgb bgc bgg bgi bgl bgn bgo bgt bi- bib bic big bii bil bin bio bit blb blc blg bli bll bln blo blt bnb bnc bng bni bnl bnn bno bnt bob boc bog boi bol bon boo bot btb btc btg bti btl btn bto btt c-- cbb cbc cbg cbi cbl cbn cbo cbt ccb ccc ccg cci ccl ccn cco cct cgb cgc cgg cgi cgl cgn cgo cgt ci- cib cic cig cii cil cin cio cit cl- clb clc clg cli cll cln clo clt cn- cnb cnc cng cni cnl cnn cno cnt co- cob coc cog coi col con coo cot ctb ctc ctg cti ctl ctn cto ctt gbc gbg gbi gbl gbn gbo gbt gcb gcc gcg gci gcl gcn gco gct ggb ggc ggg ggi ggn ggo ggt gib gic gig gii gil gin gio git glb glc glg gli gll gln glo glt gnb gnc gni gnl gnn gno gnt gob goc gog goi gol gon goo got gtb gtc gtg gti gtl gtn gto gtt ibb ibc ibg ibi ibl ibn ibo ibt icb icc icg ici icl icn ico ict igb igc igg igi igl ign igo igt iib iic iii iil iin iio iit il- ilb ilc ilg ili ill iln ilo ilt in- inb inc ing ini inl inn ino int io- iob ioc iog ioi iol ion ioo iot itb itc itg iti itl itn ito itt lbb lbc lbg lbi lbl lbo lbt lcb lcc lcg lci lcl lcn lco lct lgb lgc lgg lgi lgl lgn lgo lgt lib lic lig lii lil lin lio lit llb llc llg lli lll lln llo llt lnb lnc lng lni lnl lnn lno lnt lob loc log loi lol lon loo lot ltb ltc ltg lti ltl lto ltt n-i nbb nbc nbg nbi nbl nbn nbo nbt ncb ncc ncg nci ncl ncn nco nct ngb ngc ngg ngi ngl ngn ngo ngt nib nic nig nii nil nin nio nit nlb nlc nlg nli nll nln nlo nlt nnb nnc nng nni nnl nnn nno nnt no- nob noc nog noi nol non noo not ntb ntc ntg nti ntn nto ntt o-i ob- obb obc obg obi obl obn obo obt oc- ocb occ ocg oci ocl ocn oco oct ogc ogg ogi ogl ogn ogo ogt oib oic oii oil oin oio oit olb olc olg oli oll oln olo olt on- onb onc ong oni onl onn ono ont oo- oob ooc oog ooi ool oon ooo oot ot- otb otc otg oti otl otn oto ott tbb tbc tbg tbi tbl tbn tbo tbt tcb tcc tcg tci tcl tcn tco tct tgb tgc tgg tgi tgl tgn tgo tgt tib tic tig tii til tin tio tit tlc tlg tli tll tln tlo tlt tnb tnc tng tni tnl tnn tno tnt to- tob toc tog toi tol ton too tot ttb ttc ttg tti ttl ttn tto ttt