eee eef een eeo ees eew ef- efe eff efo efs efw en- ene enf enn eno ens enw eo- eoe eof eon eoo eos eow es- ese esf esn eso ess esw ewe ewf ewo ews eww fee fef fen feo fes few ffe fff ffn ffo ffs ffw fne fnf fnn fns fnw foe fof fon foo fos fow fse fsf fsn fso fss fsw fwe fwf fwn fwo fws ne- nee nef nen neo nes new nfe nff nfn nfo nfs nne nnf nnn nno nns nnw no- noe nof non noo nos now nse nsf nsn nso nss nsw nwe nwf nwn nwo nws oee oef oen oeo oes of- ofe off ofn ofo ofs ofw on- one onf onn ono ons oo- oof oon ooo oos oow os- ose osf osn oso oss osw owe owf own owo ows oww se- see sef sen seo ses sew sfe sff sfn sfo sfs sfw sne snf snn sno sns snw soe sof son soo sos sow ss- sse ssf ssn sso sss ssw swe swf swn swo sws wee wef wen weo wes wew wfe wff wfn wfo wfs wfw wn- wne wnf wnn wno wns wnw woe wof won woo wos wow wse wsf wsn wso wss wsw wwe wwf wwn wwo www