-al a-a a-b a-i aaa aab aaf aai aal aar aas aau ab- aba abb abf abi abl abr abs abu af- afa afb aff afi afl afr afs afu ai- aia aib aif aii ail air ais aiu al- ala alb alf ali all alr als alu ar- ara arb arf ari arl arr ars aru as- asa asb asf asi asl asr ass asu au- aua aub auf aui aul aur aus b-u baa bab baf bai bal bar bas bau bba bbb bbf bbi bbl bbr bbs bbu bfa bfb bff bfi bfl bfr bfs bfu bi- bia bib bif bii bil bir bis biu bla blb blf bli bll blr bls blu bra brb brf bri brl brr brs bru bsa bsb bsf bsi bsl bsr bss bsu bua bub buf bui bul bur bus buu faa fab faf fai fal far fas fau fba fbb fbf fbi fbl fbr fbs fbu ffa fff ffi ffl ffr ffs ffu fia fib fif fii fil fir fis fiu fla flb flf fli fll flr fls flu fra frb frf fri frl frr frs fru fsa fsb fsf fsi fsl fsr fss fsu fua fub fuf fui ful fur fus fuu i-f ia- iaa iab iaf iai ial iar ias iau iba ibb ibf ibi ibl ibr ibs ibu ifa ifb iff ifi ifl ifr ifs ifu iia iib iif iii iil iir iis iiu il- ila ilb ilf ili ill ilr ils ilu ir- ira irb irf iri irl irr irs iru is- isa isb isf isi isl isr iss isu iu- iua iub iui iur ius la- laa lab laf lai lal lar las lau lba lbb lbf lbi lbl lbr lbs lbu lfa lfb lff lfi lfl lfr lfs lfu lia lib lif lii lil lir lis liu lla llb llf lli lll llr lls llu lra lrb lrf lri lrr lrs lru lsa lsb lsf lsi lsl lsr lss lsu lua lub luf lui lul lur lus luu ra- raa rab raf rai ral rar ras rau rba rbb rbf rbi rbl rbr rbs rbu rfa rfb rff rfi rfl rfr rfs rfu ria rib rif rii ril rir ris rla rlf rli rll rlr rls rlu rra rrb rrf rri rrl rrr rrs rru rsa rsb rsf rsi rsl rsr rss rsu rua rub ruf rui rur rus ruu saa sab saf sai sal sar sas sau sba sbb sbf sbi sbl sbr sbs sbu sfa sfb sff sfi sfl sfr sfs sfu sia sib sif sii sil sir sis siu sla slb slf sli sll slr sls slu sr- sra srb srf sri srl srr srs ss- ssa ssb ssf ssi ssl ssr sss ssu sua sub suf sui sul sur sus suu ua- uaa uab uaf uai ual uar uas uau uba ubb ubf ubi ubl ubr ubs ubu ufa uff ufi ufl ufr ufs ufu uia uib uif uii uil uir uis uiu ula ulb ulf uli ull ulr uls ulu ur- ura urb urf uri url urr urs uru usa usb usf usi usl usr uss usu uua uur uus uuu