aaaa aaab aaam aaas aaba aabb aabm aabt aama aamb aams aasa aasm aass aast aata aatt abaa abab abam abas abat abb- abba abbb abbs abbt abma abmb abms abmt abs- absa abss abta abts amaa amam amas amat amb- amba ambs amm- amma amsa amss amst amta amts asaa asab asam asas asat asba asbm asma asmm asms asmt assa asss asst asta astb astm asts at-t ataa atab atas atat atbs atm- atma atms atsb atst atta atts baaa baam baas baat baba babb babm babs bama bamb bamm bams basa bass bast bata bats batt bbas bbbb bbbs bmaa bmts bsaa bsam bsas bsat bsms bsmt bssm bsts btaa btss bttb maaa maam maas maat maba mabs mama mams masa mass mast mata mats matt mbam mbas mbba mbbs mbms mbta mmaa mmab mmas mmmm mmms mmst mmts msaa msas msat msba msma msmb msmm msms mssa mssm msst msta msts mtaa mtab mtas mtbs mtsa mtss mtst mtts saab saam saas saat saba sabb sabs sam- sama samm sams samt sasa sasm sass sast sata satb sats satt sbaa sbas sbbs sbma sbsa sbst smaa smas smat smba smss ssaa ssab ssam ssas ssat sssa sssb sssm ssss ssta sstb ssts stab stam stas stat stbs stms stmt stsm stss taa- taas taat taba tabb tabs tama tamm tams tasa tasb tasm tass tast tata tatb tats tatt tbas tbbs tbst tbta tmaa tmsa tmtt tsaa tsam tsat tssa tssm tsst tstm tsts ttab ttbb ttma ttms ttss tttt