aaaa aaab aaas aaba aabb aabt aaoo aasa aass aast aata aatt abaa abab abag abas abat abb- abba abbb abbo abbs abbt aboa abob aboo abos abot abs- absa abss abta abts ag-o agag agao agas agat agba agbo agga agob agog agoo agos agot agsa agsg agst agta agts aoba aoss asaa asab asag asao asas asat asba asbo asgt asob asog asos asot assa asso asss asst asta astb asto asts at-t ataa atab atas atat atbs atgo atob atos atot atsb atst atta atto atts baaa baas baat baba babb babo babs baga bagg bago bags bagt baos basa baso bass bast bata bato bats batt bbas bbbb bbbs bbga bggs bgst boab boag boas boat boba bobb bobo bobs boga bogg bogo bogs bogt boob boog boos boot bosa boso boss bost bota botb boto bots bott bsaa bsas bsat bsgs bsos bsts btaa btob btss bttb gaas gaba gabb gabo gabs gabt gaga gagg gago gags gaos gasa gasb gaso gass gast gata gato gats gatt gbag gbas gbbo gbbs ggbt gggg ggss goas goat goba gobo gobs goga gogo gogs goog goos goot goso goss gost gota goto gots gott gsab gsat gsos gtaa gtos gtta oass oast oats obas obba obbo obos obot obss obst obts ogb ogba ogoa ogog ooaa ooba oooo ooos oosa oost ootb oots osag osas osat osba osoo osos ossa ossb osso osta osts otas otbs oto- otog otoo otos otsa otsg otso otta otto otts s-os saab saag saas saat saba sabb sabo sabs saga sagg sago sags sagt saos sasa saso sass sast sata satb satg sato sats satt sbaa sbas sbbs sbot sbsa sbst sgaa sggg sggs sgss sgta sgts soas soat soba sobo sobs sobt soga sogo sogs soog soos soot sosa soso soss sost sota soto sots ssaa ssab ssao ssas ssat ssgs ssgt ssot sssa sssb ssss ssta sstb ssts stab stag stas stat stbs stoa stob stog stoo stos stot stss taa- taag taas taat taba tabb tabo tabs taga tagg tago tags taoa taos tasa tasb tass tast tata tatb tato tats tatt tbas tbbs tbgs tbst tbta tgts toab toas toat toba tobo tobs tobt toga togo togs togt tooa toos toot tosa tosb toso toss tost tota toto tots tott tsaa tsao tsat tsgt tsob tsos tssa tssg tsst tsts ttab ttbb ttss tttt