-al -ol a-a a-b a-i aaa aab aad aaf aai aal aao aap aar ab- aba abb abd abf abi abl abo abp abr ad- ada adb add adf adi adl ado adp adr af- afa afb afd aff afi afl afo afp afr ai- aia aib aid aif aii ail aio aip air al- ala alb ald alf ali all alo alp alr aoa aob aod aof aoi aol aoo aop aor ap- apa apb apd apf api apl apo app apr ar- ara arb ard arf ari arl aro arp arr b-p baa bab bad baf bai bal bao bap bar bba bbb bbd bbf bbi bbl bbo bbp bbr bda bdb bdd bdf bdi bdl bdo bdp bdr bfa bfb bfd bff bfi bfl bfo bfp bfr bi- bia bib bid bif bii bil bio bip bir bla blb bld blf bli bll blo blp blr boa bob bod bof boi bol boo bop bor bpa bpb bpd bpf bpi bpl bpo bpp bpr bra brb brd brf bri brl bro brp brr daa dab dad daf dai dal dao dap dar dba dbb dbd dbf dbi dbl dbo dbp dbr dda ddb ddd ddf ddi ddl ddo ddp ddr dfa dfb dfd dff dfi dfl dfo dfp dfr di- dia dib did dif dii dil dio dip dir dl- dla dlb dld dlf dli dll dlo dlp dlr doa dob dod dof doi dol doo dop dor dpa dpb dpd dpf dpi dpl dpo dpp dpr dra drb drd dri drl dro drp drr faa fab fad faf fai fal fao fap far fba fbb fbd fbf fbi fbl fbo fbp fbr fda fdb fdd fdf fdi fdl fdo fdp fdr ffa ffd fff ffi ffl ffo ffp ffr fia fib fid fif fii fil fip fir fla flb fld flf fli fll flo flp flr foa fob fof foi fol foo fop for fpa fpb fpd fpi fpl fpo fpp fpr fra frb frd frf fri frl fro frp frr i-d i-f ia- iaa iab iad iaf iai ial iao iap iar iba ibb ibd ibf ibi ibl ibo ibp ibr ida idb idd idf idi idl ido idp idr ifa ifb ifd iff ifi ifl ifo ifp ifr iia iib iid iif iii iil iio iip iir il- ila ilb ild ilf ili ill ilo ilp ilr io- ioa iob iod iof ioi iol ioo iop ior ipa ipb ipd ipf ipi ipl ipo ipp ipr ir- ira irb ird irf iri irl iro irp irr l-p la- laa lab lad laf lai lal lao lap lar lba lbb lbd lbf lbi lbl lbo lbp lbr lda ldb ldd ldf ldi ldl ldo ldp ldr lfa lfb lfd lff lfi lfl lfo lfp lfr lia lib lid lif lii lil lio lip lir lla llb lld llf lli lll llo llp llr loa lob lod lof loi lol loo lop lor lpa lpb lpd lpf lpi lpl lpo lpp lpr lra lrb lrd lrf lri lro lrp lrr o-i oaa oab oad oaf oai oal oao oap oar ob- oba obb obd obf obi obl obo obp obr oda odb odd odf odi odl odo odp odr of- ofa ofb ofd off ofi ofl ofo ofp ofr oia oib oid oif oii oil oio oip oir ola olb old olf oli oll olo olp oo- ooa oob ood oof ooi ool ooo oop oor op- opa opb opd opf opi opl opo opp opr or- ora orb ord orf ori orl oro orp orr p-p paa pab pad paf pai pal pao pap par pba pbb pbd pbf pbi pbl pbo pbp pbr pda pdb pdd pdf pdi pdl pdo pdp pdr pfa pfb pfd pff pfi pfl pfo pfp pfr pia pib pid pif pii pil pio pip pir pla plb pld plf pli pll plo plp plr poa pob pod pof poi pol poo pop por ppa ppb ppd ppf ppi ppl ppo ppp ppr pra prb prd prf pri prl pro prp prr ra- raa rab rad raf rai ral rao rap rar rba rbb rbd rbf rbi rbl rbo rbp rbr rda rdb rdd rdf rdi rdl rdo rdp rdr rfa rfb rfd rff rfi rfl rfo rfp rfr ria rib rid rif rii ril rio rip rir rla rld rlf rli rll rlo rlp rlr roa rob rod rof roi rol roo rop ror rpa rpb rpd rpf rpi rpl rpo rpp rpr rra rrb rrd rrf rri rrl rrp rrr

a-do a-ii aaaa aaab aaad aaaf aaai aaal aaap aaar aaba aabb aabd aabi aabl aabp aada aadi aafa aafb aafd aaff aafi aafl aaib aaii aala aald aali aall aalo aaoo aapa aapi aapl aapo aara aard aari aaro aarp abaa abab abad abaf abai abal abap abar abb- abba abbb abbi abbo abbr abda abdi abdo abff abia abib abid abil abir abla ablo aboa abob abod abof abol aboo abor abpa abpd abpi abpp abpr abra abri abro adaa adab adad adai adal adao adap adar adba adbi adda addd addi addl addo addr adfa adfl adia adib adif adio adip adir adli adob adod adoo ador adp- adra adro afaa afad afao afap afar afdb afdl affa affi affo afia afib afid afif afil afir afla aflp afoa afol afoo afor afpa afr- afra afri afro aiai aiba aibl aibo aida aidb aidi aidr aifd aiff aifl aiia aiib aiid aiir aila aild aili aioi aipa aipf aipi aira aird airi airo airp al-p alaa alad alai alal alao alap alar alb- alba albi albo ald- alda aldi aldl aldo alfa alfi ali- alia alib alid alif alii alil alio alip alir all- alla alli alll allo allr aloa alod alof aloi alol aloo alop alor alpa alpi alpl alpo alro aoba aola aopo aora aorb apai apal apao apap apar apba apbr apda apdd apfa apfl apfo api- apia apid apio apip apl- apla aplp apo- apod apof apoo apop apor appa appd