-al a-a a-b a-i a-t aaa aab aad aai aal aar aas aat ab- aba abb abd abi abl abr abs abt ad- ada adb add adi adl adr ads adt ai- aia aib aid aii ail air ais ait al- ala alb ald ali all alr als alt ar- ara arb ard ari arl arr ars art as- asa asb asd asi asl asr ass ast at- ata atb atd ati atl atr ats att baa bab bad bai bal bar bas bat bba bbb bbd bbi bbl bbr bbs bbt bda bdb bdd bdi bdl bdr bds bdt bi- bia bib bid bii bil bir bis bit bla blb bld bli bll blr bls blt bra brb brd bri brl brr brs brt bsa bsb bsd bsi bsl bsr bss bst bta btb btd bti btl btr bts btt daa dab dad dai dal dar das dat dba dbb dbd dbi dbl dbr dbs dbt dda ddb ddd ddi ddl ddr dds ddt di- dia dib did dii dil dir dis dit dl- dla dlb dld dli dll dlr dls dlt dra drb drd dri drl drr drs drt dsa dsb dsd dsi dsl dsr dss dst dta dtb dtd dti dtl dtr dts dtt i-d ia- iaa iab iad iai ial iar ias iat iba ibb ibd ibi ibl ibr ibs ibt ida idb idd idi idl idr ids idt iia iib iid iii iil iir iis iit il- ila ilb ild ili ill ilr ils ilt ir- ira irb ird iri irl irr irs irt is- isa isb isd isi isl isr iss ist ita itb itd iti itl its itt la- laa lab lad lai lal lar las lat lba lbb lbd lbi lbl lbr lbs lbt lda ldb ldd ldi ldl ldr lds ldt lia lib lid lii lil lir lis lit lla llb lld lli lll llr lls llt lra lrb lrd lri lrr lrs lrt lsa lsb lsd lsi lsl lsr lss lst lta ltb ltd lti ltl ltr lts ltt ra- raa rab rad rai ral rar ras rat rba rbb rbd rbi rbl rbr rbs rbt rda rdb rdd rdi rdl rdr rds rdt ria rib rid rii ril rir ris rit rla rld rli rll rlr rls rlt rra rrb rrd rri rrl rrr rrs rrt rsa rsb rsd rsi rsl rsr rss rst rta rtb rtd rti rtl rtr rts rtt saa sab sad sai sal sar sas sat sba sbb sbd sbi sbl sbr sbs sbt sda sdb sdd sdi sdl sdr sds sdt sia sib sid sii sil sir sis sit sla slb sld sli sll slr sls slt sr- sra srb srd sri srl srr srs srt ss- ssa ssb ssd ssi ssl ssr sss sst sta stb std sti stl str sts stt taa tab tad tai tal tar tas tat tba tbb tbd tbi tbl tbr tbs tbt tda tdb tdd tdi tdl tdr tds tdt tia tib tid tii til tir tis tit tla tld tli tll tlr tls tlt tra trb trd tri trl trr trs trt tsa tsb tsd tsi tsl tsr tss tst tta ttb ttd tti ttl ttr tts ttt