-ic -ol c-- ccc ccg cci ccl cco cct ccx cgc cgg cgi cgl cgo cgt ci- cic cig cii cil cio cit cix cl- clc clg cli cll clo clt clx co- coc cog coi col coo cot cox ctc ctg cti ctl cto ctt ctx cxc cxi cxl cxo cxt cxx gcc gcg gci gcl gco gct ggc ggg ggi ggo ggt gic gig gii gil gio git glc glg gli gll glo glt glx goc gog goi gol goo got gox gtc gtg gti gtl gto gtt gtx gxl gxt icc icg ici icl ico ict igc igg igi igl igo igt iic iii iil iio iit iix il- ilc ilg ili ill ilo ilt ilx io- ioc iog ioi iol ioo iot itc itg iti itl ito itt itx ixc ixi ixl lcc lcg lci lcl lco lct lcx lgc lgg lgi lgl lgo lgt lic lig lii lil lio lit lix llc llg lli lll llo llt loc log loi lol loo lot lox ltc ltg lti ltl lto ltt ltx lxc lxi lxo lxx o-i oc- occ ocg oci ocl oco oct ocx ogc ogg ogi ogl ogo ogt ogx oic oii oil oio oit olc olg oli oll olo olt oo- ooc oog ooi ool ooo oot oox ot- otc otg oti otl oto ott ox- oxc oxi oxo oxt oxx t-x tcc tcg tci tcl tco tct tcx tgc tgg tgi tgl tgo tgt tic tig tii til tio tit tix tlc tlg tli tll tlo tlt tlx to- toc tog toi tol too tot tox ttc ttg tti ttl tto ttt ttx txi txl txt xci xcl xcx xgi xgl xic xii xio xit xix xlg xli xlt xoc xog xoi xoo xot xox xtc xti xtx xxi xxl xxo xxx