a-a aaa aaf aap aas aaw af- afa aff afp afs afw ap- apa apf app aps apw as- asa asf asp ass asw aw- awa awf awp aws aww faa faf fap fas faw ffa fff ffp ffs ffw fpa fpp fps fsa fsf fsp fss fsw fwa fwf fwp fws p-p paa paf pap pas paw pfa pff pfp pfs ppa ppf ppp pps ppw ps- psa psf psp pss psw pwa pwf pwp pws saa saf sap sas saw sfa sff sfp sfs sfw spa spf spp sps spw ss- ssa ssf ssp sss ssw swa swf swp sws waa waf wap was waw wfa wff wfp wfs wfw wpa wpf wpp wps wsa wsf wsp wss wsw wwa wwf wwp www