a-a aaa aae aaf aag aap aas aea aee aef aeg aep aes af- afa afe aff afg afp afs ag- aga age agf agg agp ags ap- apa ape apf apg app aps as- asa ase asf asg asp ass eaa eae eaf eag eap eas eea eee eef eeg eep ees ef- efa efe eff efg efp efs ega ege egf egg egp egs ep- epa epe epf epg epp eps es- esa ese esf esg esp ess faa fae faf fag fap fas fea fee fef feg fep fes ffa ffe fff ffg ffp ffs fga fge fgf fgg fgp fgs fpa fpe fpg fpp fps fsa fse fsf fsg fsp fss g-p gaa gae gaf gag gap gas ge- gea gee gef geg gep ges gfa gfe gff gfp gfs gga ggg ggp ggs gpa gpe gpf gpg gpp gps gsa gse gsf gsg gsp gss p-p paa pae paf pag pap pas pea pee pef peg pep pes pfa pfe pff pfg pfp pfs pga pge pgf pgg pgp pgs ppa ppe ppf ppg ppp pps ps- psa pse psf psg psp pss saa sae saf sag sap sas se- sea see sef seg sep ses sfa sfe sff sfg sfp sfs sga sge sgf sgg sgp sgs spa spe spf spg spp sps ss- ssa sse ssf ssg ssp sss