-al a-a a-b a-i a-t aaa aab aad aaf aai aal aar aat ab- aba abb abd abf abi abl abr abt ad- ada adb add adf adi adl adr adt af- afa afb afd aff afi afl afr aft ai- aia aib aid aif aii ail air ait al- ala alb ald alf ali all alr alt ar- ara arb ard arf ari arl arr art at- ata atb atd atf ati atl atr att baa bab bad baf bai bal bar bat bba bbb bbd bbf bbi bbl bbr bbt bda bdb bdd bdf bdi bdl bdr bdt bfa bfb bfd bff bfi bfl bfr bft bi- bia bib bid bif bii bil bir bit bla blb bld blf bli bll blr blt bra brb brd brf bri brl brr brt bta btb btd btf bti btl btr btt daa dab dad daf dai dal dar dat dba dbb dbd dbf dbi dbl dbr dbt dda ddb ddd ddf ddi ddl ddr ddt dfa dfb dfd dff dfi dfl dfr dft di- dia dib did dif dii dil dir dit dl- dla dlb dld dlf dli dll dlr dlt dra drb drd dri drl drr drt dta dtb dtd dtf dti dtl dtr dtt faa fab fad faf fai fal far fat fba fbb fbd fbf fbi fbl fbr fbt fda fdb fdd fdf fdi fdl fdr fdt ffa ffd fff ffi ffl ffr fft fia fib fid fif fii fil fir fit fla flb fld flf fli fll flr flt fra frb frd frf fri frl frr frt fta ftb ftd ftf fti ftl ftr ftt i-d i-f ia- iaa iab iad iaf iai ial iar iat iba ibb ibd ibf ibi ibl ibr ibt ida idb idd idf idi idl idr idt ifa ifb ifd iff ifi ifl ifr ift iia iib iid iif iii iil iir iit il- ila ilb ild ilf ili ill ilr ilt ir- ira irb ird irf iri irl irr irt ita itb itd itf iti itl itt la- laa lab lad laf lai lal lar lat lba lbb lbd lbf lbi lbl lbr lbt lda ldb ldd ldf ldi ldl ldr ldt lfa lfb lfd lff lfi lfl lfr lft lia lib lid lif lii lil lir lit lla llb lld llf lli lll llr llt lra lrb lrd lrf lri lrr lrt lta ltb ltd ltf lti ltl ltr ltt ra- raa rab rad raf rai ral rar rat rba rbb rbd rbf rbi rbl rbr rbt rda rdb rdd rdf rdi rdl rdr rdt rfa rfb rfd rff rfi rfl rfr rft ria rib rid rif rii ril rir rit rla rld rlf rli rll rlr rlt rra rrb rrd rrf rri rrl rrr rrt rta rtb rtd rtf rti rtl rtr rtt taa tab tad taf tai tal tar tat tba tbb tbd tbf tbi tbl tbr tbt tda tdb tdd tdf tdi tdl tdr tdt tfa tfb tfd tff tfi tfl tfr tft tia tib tid tif tii til tir tit tla tld tlf tli tll tlr tlt tra trb trd trf tri trl trr trt tta ttb ttd ttf tti ttl ttr ttt