aaaa aaab aaam aaas aaba aabb aabm aabt aama aamb aams aasa aasm aass aast aata aatt abaa abab abam abas abat abax abb- abba abbb abbs abbt abma abmb abms abmt abs- absa abss abta abts amaa amam amas amat amax amb- amba ambs ambx amm- amma amsa amss amst amta amts asaa asab asam asas asat asba asbm asma asmm asms asmt asmx assa asss asst asta astb astm asts at-t at-x ataa atab atas atat atax atbs atm- atma atms atsb atst atta atts axat ba-x baaa baam baas baat baba babb babm babs bama bamb bamm bams basa bass bast bata bats batt baxt 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 maxx mbam mbas mbba mbbs mbms mbta mmaa mmab mmas mmmm mmms mmst mmts mmxx msaa msas msat msba msma msmb msmm msms mssa mssm msst msta msts mtaa mtab mtas mtbs mtsa mtss mtst mtts sa-x saab saam saas saat saba sabb sabs sam- sama samm sams samt sasa sasm sass sast sata satb sats satt saxa saxt sbaa sbas sbbs sbma sbsa sbst smaa smas smat smax smba smss ssaa ssab ssam ssas ssat sssa sssb sssm ssss ssta sstb ssts stab stam stas stat stax stbs stms stmt stsm stss taa- taas taat taba tabb tabs tama tamm tams tasa tasb tasm tass tast tata tatb tats tatt tax- taxa taxm taxt tbas tbbs tbst tbta tmaa tmax tmsa tmtt tsaa tsam tsat tssa tssm tsst tstm tsts ttab ttbb ttma ttms ttss tttt txaa xats xmas xmax xmms xtbs xxxx