-al -ol a-a a-b a-i aaa aab aae aaf aai aal aao aap ab- aba abb abe abf abi abl abo abp aea aeb aee aef aei ael aeo aep af- afa afb afe aff afi afl afo afp ai- aia aib aie aif aii ail aio aip al- ala alb ale alf ali all alo alp aoa aob aoe aof aoi aol aoo aop ap- apa apb ape apf api apl apo app b-p baa bab bae baf bai bal bao bap bba bbb bbe bbf bbi bbl bbo bbp be- bea beb bee bef bei bel beo bep bfa bfb bfe bff bfi bfl bfo bfp bi- bia bib bie bif bii bil bio bip bla blb ble blf bli bll blo blp boa bob boe bof boi bol boo bop bpa bpb bpe bpf bpi bpl bpo bpp eaa eab eae eaf eai eal eao eap eba ebb ebe ebf ebi ebl ebo ebp eea eeb eee eef eel eeo eep ef- efa efb efe eff efi efl efo efp eia eib eie eif eii eil eio eip ela elb ele elf eli ell elo elp eo- eoa eob eoe eof eoi eol eoo eop ep- epa epb epe epf epi epl epo epp faa fab fae faf fai fal fao fap fba fbb fbe fbf fbi fbl fbo fbp fea feb fee fef fei fel feo fep ffa ffe fff ffi ffl ffo ffp fia fib fie fif fii fil fip fla flb fle flf fli fll flo flp foa fob foe fof foi fol foo fop fpa fpb fpe fpi fpl fpo fpp i-f ia- iaa iab iae iaf iai ial iao iap iba ibb ibe ibf ibi ibl ibo ibp ie- iea iee ief iei iel iep ifa ifb ife iff ifi ifl ifo ifp iia iib iie iif iii iil iio iip il- ila ilb ile ilf ili ill ilo ilp io- ioa iob ioe iof ioi iol ioo iop ipa ipb ipe ipf ipi ipl ipo ipp l-p la- laa lab lae laf lai lal lao lap lba lbb lbe lbf lbi lbl lbo lbp lea leb lee lef lei lel leo lep lfa lfb lfe lff lfi lfl lfo lfp lia lib lie lif lii lil lio lip lla llb lle llf lli lll llo llp loa lob loe lof loi lol loo lop lpa lpb lpe lpf lpi lpl lpo lpp o-i oaa oab oae oaf oai oal oao oap ob- oba obb obe obf obi obl obo obp oea oeb oee oef oei oel oeo oep of- ofa ofb ofe off ofi ofl ofo ofp oia oib oie oif oii oil oio oip ola olb ole olf oli oll olo olp oo- ooa oob oof ooi ool ooo oop op- opa opb ope opf opi opl opo opp p-p paa pab pae paf pai pal pao pap pba pbb pbe pbf pbi pbl pbo pbp pea peb pee pef pei pel peo pep pfa pfb pfe pff pfi pfl pfo pfp pia pib pie pif pii pil pio pip pla plb ple plf pli pll plo plp poa pob poe pof poi pol poo pop ppa ppb ppe ppf ppi ppl ppo ppp