-ol bbb bbd bbf bbi bbl bbo bbr bbs bbt bdb bdd bdf bdi bdl bdo bdr bds bdt bfb bfd bff bfi bfl bfo bfr bfs bft bi- bib bid bif bii bil bio bir bis bit blb bld blf bli bll blo blr bls blt bob bod bof boi bol boo bor bos bot brb brd brf bri brl bro brr brs brt bsb bsd bsf bsi bsl bso bsr bss bst btb btd btf bti btl bto btr bts btt dbb dbd dbf dbi dbl dbo dbr dbs dbt ddb ddd ddf ddi ddl ddo ddr dds ddt dfb dfd dff dfi dfl dfo dfr dfs dft di- dib did dif dii dil dio dir dis dit dl- dlb dld dlf dli dll dlo dlr dls dlt dob dod dof doi dol doo dor dos dot drb drd dri drl dro drr drs drt dsb dsd dsf dsi dsl dso dsr dss dst dtb dtd dtf dti dtl dto dtr dts dtt fbb fbd fbf fbi fbl fbo fbr fbs fbt fdb fdd fdf fdi fdl fdo fdr fds fdt ffd fff ffi ffl ffo ffr ffs fft fib fid fif fii fil fir fis fit flb fld flf fli fll flo flr fls flt fob fof foi fol foo for fos fot frb frd frf fri frl fro frr frs frt fsb fsd fsf fsi fsl fso fsr fss fst ftb ftd ftf fti ftl fto ftr fts ftt i-d i-f ibb ibd ibf ibi ibl ibo ibr ibs ibt idb idd idf idi idl ido idr ids idt ifb ifd iff ifi ifl ifo ifr ifs ift iib iid iif iii iil iio iir iis iit il- ilb ild ilf ili ill ilo ilr ils ilt io- iob iod iof ioi iol ioo ior ios iot ir- irb ird irf iri irl iro irr irs irt is- isb isd isf isi isl iso isr iss ist itb itd itf iti itl ito its itt lbb lbd lbf lbi lbl lbo lbr lbs lbt ldb ldd ldf ldi ldl ldo ldr lds ldt lfb lfd lff lfi lfl lfo lfr lfs lft lib lid lif lii lil lio lir lis lit llb lld llf lli lll llo llr lls llt lob lod lof loi lol loo lor los lot lrb lrd lrf lri lro lrr lrs lrt lsb lsd lsf lsi lsl lso lsr lss lst ltb ltd ltf lti ltl lto ltr lts ltt o-i ob- obb obd obf obi obl obo obr obs obt odb odd odf odi odl odo odr ods odt of- ofb ofd off ofi ofl ofo ofr ofs oft oib oid oif oii oil oio oir ois oit olb old olf oli oll olo ols olt oo- oob ood oof ooi ool ooo oor oos oot or- orb ord orf ori orl oro orr ors ort os- osb osd osf osi osl oso osr oss ost ot- otb otd otf oti otl oto otr ots ott rbb rbd rbf rbi rbl rbo rbr rbs rbt rdb rdd rdf rdi rdl rdo rdr rds rdt rfb rfd rff rfi rfl rfo rfr rfs rft rib rid rif rii ril rio rir ris rit rld rlf rli rll rlo rlr rls rlt rob rod rof roi rol roo ror ros rot rrb rrd rrf rri rrl rrr rrs rrt rsb rsd rsf rsi rsl rso rsr rss rst rtb rtd rtf rti rtl rto rtr rts rtt sbb sbd sbf sbi sbl sbo sbr sbs sbt sdb sdd sdf sdi sdl sdo sdr sds sdt sfb sfd sff sfi sfl sfo sfr sfs sft sib sid sif sii sil sio sir sis sit slb sld slf sli sll slo slr sls slt sob sod sof soi sol soo sor sos sot sr- srb srd srf sri srl sro srr srs srt ss- ssb ssd ssf ssi ssl sso ssr sss sst stb std stf sti stl sto str sts stt tbb tbd tbf tbi tbl tbo tbr tbs tbt tdb tdd tdf tdi tdl tdo tdr tds tdt tfb tfd tff tfi tfl tfo tfr tfs tft tib tid tif tii til tio tir tis tit tld tlf tli tll tlo tlr tls tlt to- tob tod tof toi tol too tor tos tot trb trd trf tri trl tro trr trs trt tsb tsd tsf tsi tsl tso tsr tss tst ttb ttd ttf tti ttl tto ttr tts ttt