fff ffi ffn ffo ffs fft ffw fif fii fin fis fit fnf fni fnn fns fnt fnw fof foi fon foo fos fot fow fsf fsi fsn fso fss fst fsw ftf fti ftn fto fts ftt ftw fwf fwi fwn fwo fws fwt i-f iff ifi ifn ifo ifs ift iif iii iin iio iis iit iiw in- inf ini inn ino ins int io- iof ioi ion ioo ios iot iow is- isf isi isn iso iss ist isw itf iti itn ito its itt iwf iwi iwo iws iwt iww n-i nff nfi nfn nfo nfs nft nif nii nin nio nis nit nnf nni nnn nno nns nnt nnw no- nof noi non noo nos not now nsf nsi nsn nso nss nst nsw ntf nti ntn nto nts ntt nwf nwi nwn nwo nws nwt o-i of- off ofi ofn ofo ofs oft ofw oif oii oin oio ois oit on- onf oni onn ono ons ont oo- oof ooi oon ooo oos oot oow os- osf osi osn oso oss ost osw ot- otf oti otn oto ots ott otw owf owi own owo ows owt oww sff sfi sfn sfo sfs sft sfw sif sii sin sio sis sit siw snf sni snn sno sns snt snw sof soi son soo sos sot sow ss- ssf ssi ssn sso sss sst ssw stf sti stn sto sts stt stw swf swi swn swo sws swt tff tfi tfn tfo tfs tft tfw tif tii tin tio tis tit tiw tnf tni tnn tno tns tnt tnw to- tof toi ton too tos tot tow tsf tsi tsn tso tss tst tsw ttf tti ttn tto tts ttt ttw twf twi twn two tws twt tww wff wfi wfn wfo wfs wft wfw wif wii win wis wit wn- wnf wnn wno wns wnt wnw wof woi won woo wos wot wow wsf wsi wsn wso wss wst wsw wtf wti wtn wto wts wtt wtw wwf wwi wwn wwo wwt www