-al a-a a-b a-i aaa aab aad aai aal aar aas ab- aba abb abd abi abl abr abs ad- ada adb add adi adl adr ads ai- aia aib aid aii ail air ais al- ala alb ald ali all alr als ar- ara arb ard ari arl arr ars as- asa asb asd asi asl asr ass baa bab bad bai bal bar bas bba bbb bbd bbi bbl bbr bbs bda bdb bdd bdi bdl bdr bds bi- bia bib bid bii bil bir bis bla blb bld bli bll blr bls bra brb brd bri brl brr brs bsa bsb bsd bsi bsl bsr bss daa dab dad dai dal dar das dba dbb dbd dbi dbl dbr dbs dda ddb ddd ddi ddl ddr dds di- dia dib did dii dil dir dis dl- dla dlb dld dli dll dlr dls dra drb drd dri drl drr drs dsa dsb dsd dsi dsl dsr dss i-d ia- iaa iab iad iai ial iar ias iba ibb ibd ibi ibl ibr ibs ida idb idd idi idl idr ids iia iib iid iii iil iir iis il- ila ilb ild ili ill ilr ils ir- ira irb ird iri irl irr irs is- isa isb isd isi isl isr iss la- laa lab lad lai lal lar las lba lbb lbd lbi lbl lbr lbs lda ldb ldd ldi ldl ldr lds lia lib lid lii lil lir lis lla llb lld lli lll llr lls lra lrb lrd lri lrr lrs lsa lsb lsd lsi lsl lsr lss ra- raa rab rad rai ral rar ras rba rbb rbd rbi rbl rbr rbs rda rdb rdd rdi rdl rdr rds ria rib rid rii ril rir ris rla rld rli rll rlr rls rra rrb rrd rri rrl rrr rrs rsa rsb rsd rsi rsl rsr rss saa sab sad sai sal sar sas sba sbb sbd sbi sbl sbr sbs sda sdb sdd sdi sdl sdr sds sia sib sid sii sil sir sis sla slb sld sli sll slr sls sr- sra srb srd sri srl srr srs ss- ssa ssb ssd ssi ssl ssr sss