-al a-a a-b a-i a-t aaa aab aad aai aal aas aat ab- aba abb abd abi abl abs abt ad- ada adb add adi adl ads adt ai- aia aib aid aii ail ais ait al- ala alb ald ali all als alt as- asa asb asd asi asl ass ast at- ata atb atd ati atl ats att baa bab bad bai bal bas bat bba bbb bbd bbi bbl bbs bbt bda bdb bdd bdi bdl bds bdt bi- bia bib bid bii bil bis bit bla blb bld bli bll bls blt bsa bsb bsd bsi bsl bss bst bta btb btd bti btl bts btt daa dab dad dai dal das dat dba dbb dbd dbi dbl dbs dbt dda ddb ddd ddi ddl dds ddt di- dia dib did dii dil dis dit dl- dla dlb dld dli dll dls dlt dsa dsb dsd dsi dsl dss dst dta dtb dtd dti dtl dts dtt i-d ia- iaa iab iad iai ial ias iat iba ibb ibd ibi ibl ibs ibt ida idb idd idi idl ids idt iia iib iid iii iil iis iit il- ila ilb ild ili ill ils ilt is- isa isb isd isi isl iss ist ita itb itd iti itl its itt la- laa lab lad lai lal las lat lba lbb lbd lbi lbl lbs lbt lda ldb ldd ldi ldl lds ldt lia lib lid lii lil lis lit lla llb lld lli lll lls llt lsa lsb lsd lsi lsl lss lst lta ltb ltd lti ltl lts ltt saa sab sad sai sal sas sat sba sbb sbd sbi sbl sbs sbt sda sdb sdd sdi sdl sds sdt sia sib sid sii sil sis sit sla slb sld sli sll sls slt ss- ssa ssb ssd ssi ssl sss sst sta stb std sti stl sts stt taa tab tad tai tal tas tat tba tbb tbd tbi tbl tbs tbt tda tdb tdd tdi tdl tds tdt tia tib tid tii til tis tit tla tld tli tll tls tlt tsa tsb tsd tsi tsl tss tst tta ttb ttd tti ttl tts ttt