-ol c-- ccc ccd cce ccl cco ccp ccx cdc cdd cde cdl cdo cdp cdx ce- cec ced cee cel ceo cep cex cl- clc cld cle cll clo clp clx co- coc cod coe col coo cop cox cpc cpd cpe cpl cpo cpp cpx cxc cxl cxo cxp cxx dcc dcd dce dcl dco dcp dcx ddc ddd dde ddl ddo ddp ddx de- dec ded dee del deo dep dex dl- dlc dld dle dll dlo dlp dlx doc dod doe dol doo dop dox dpc dpd dpe dpl dpo dpp dxc dxd dxl dxo dxp dxx ec- ecc ecd ece ecl eco ecx ed- edc edd ede edl edo edp edx eec eed eee eel eeo eep eex elc eld ele ell elo elp elx eo- eoc eod eoe eol eoo eop ep- epc epd epe epl epo epp epx ex- exc exd exe exl exo exp exx l-p lcc lcd lce lcl lco lcp lcx ldc ldd lde ldl ldo ldp lec led lee lel leo lep lex llc lld lle lll llo llp loc lod loe lol loo lop lox lpc lpd lpe lpl lpo lpp lpx lxc lxd lxo lxx oc- occ ocd ocl oco ocp ocx odc odd ode odl odo odp oec oed oee oel oeo oep oex olc old ole oll olo olp oo- ooc ood ool ooo oop oox op- opc opd ope opl opo opp opx ox- oxc oxo oxx p-p pcc pcd pce pcl pco pcp pcx pdc pdd pde pdl pdo pdp pdx pec ped pee pel peo pep pex plc pld ple pll plo plp plx poc pod poe pol poo pop pox ppc ppd ppe ppl ppo ppp ppx pxc pxe pxl xcd xcl xcp xcx xdc xde xed xee xel xep xex xld xoc xod xoo xop xox xpc xpd xpe xpl xpo xpp xxl xxo xxp xxx