-al -er -ol a-a a-b a-i aaa aab aae aag aai aal aao aap aar ab- aba abb abe abg abi abl abo abp abr aea aeb aee aeg aei ael aeo aep aer ag- aga agb age agg agi agl ago agp agr ai- aia aib aie aig aii ail aio aip air al- ala alb ale alg ali all alo alp alr aoa aob aoe aog aoi aol aoo aop aor ap- apa apb ape apg api apl apo app apr ar- ara arb are arg ari arl aro arp arr b-p baa bab bae bag bai bal bao bap bar bba bbb bbe bbg bbi bbl bbo bbp bbr be- bea beb bee beg bei bel beo bep ber bga bgb bge bgg bgi bgl bgo bgp bgr bi- bia bib bie big bii bil bio bip bir bla blb ble blg bli bll blo blp blr boa bob boe bog boi bol boo bop bor bpa bpb bpe bpg bpi bpl bpo bpp bpr bra brb bre brg bri brl bro brp brr eaa eab eae eag eai eal eao eap ear eba ebb ebe ebg ebi ebl ebo ebp ebr eea eeb eee eeg eel eeo eep eer ega egb ege egg egi egl ego egp egr eia eib eie eig eii eil eio eip eir ela elb ele elg eli ell elo elp elr eo- eoa eob eoe eog eoi eol eoo eop eor ep- epa epb epe epg epi epl epo epp epr era erb ere erg eri erl ero erp err g-p gaa gab gae gag gai gal gao gap gar gba gbe gbg gbi gbl gbo gbp gbr ge- gea geb gee geg gei gel geo gep ger gga ggb ggg ggi ggo ggp ggr gia gib gie gig gii gil gio gip gir gla glb gle glg gli gll glo glp glr goa gob goe gog goi gol goo gop gor gpa gpb gpe gpg gpi gpl gpo gpp gpr gra grb gre grg gri grl gro grp grr ia- iaa iab iae iag iai ial iao iap iar iba ibb ibe ibg ibi ibl ibo ibp ibr ie- iea iee ieg iei iel iep ier iga igb ige igg igi igl igo igp igr iia iib iie iii iil iio iip iir il- ila ilb ile ilg ili ill ilo ilp ilr io- ioa iob ioe iog ioi iol ioo iop ior ipa ipb ipe ipg ipi ipl ipo ipp ipr ir- ira irb ire irg iri irl iro irp irr l-p la- laa lab lae lag lai lal lao lap lar lba lbb lbe lbg lbi lbl lbo lbp lbr lea leb lee leg lei lel leo lep ler lga lgb lge lgg lgi lgl lgo lgp lgr lia lib lie lig lii lil lio lip lir lla llb lle llg lli lll llo llp llr loa lob loe log loi lol loo lop lor lpa lpb lpe lpg lpi lpl lpo lpp lpr lra lrb lrg lri lro lrp lrr o-i oaa oab oae oag oai oal oao oap oar ob- oba obb obe obg obi obl obo obp obr oea oeb oee oeg oei oel oeo oep oer oga oge ogg ogi ogl ogo ogp oia oib oie oii oil oio oip oir ola olb ole olg oli oll olo olp oo- ooa oob oog ooi ool ooo oop oor op- opa opb ope opg opi opl opo opp opr or- ora orb ore org ori orl oro orp orr p-p paa pab pae pag pai pal pao pap par pba pbb pbe pbg pbi pbl pbo pbp pbr pea peb pee peg pei pel peo pep per pga pgb pge pgg pgi pgl pgo pgp pgr pia pib pie pig pii pil pio pip pir pla plb ple plg pli pll plo plp plr poa pob poe pog poi pol poo pop por ppa ppb ppe ppg ppi ppl ppo ppp ppr pra prb pre prg pri prl pro prp prr ra- raa rab rae rag rai ral rao rap rar rba rbb rbe rbg rbi rbl rbo rbp rbr re- rea reb ree reg rei rel reo rep rer rga rgb rge rgg rgi rgo rgp rgr ria rib rie rig rii ril rio rip rir rla rle rlg rli rll rlo rlp rlr roa rob roe rog roi rol roo rop ror rpa rpb rpe rpg rpi rpl rpo rpp rpr rra rrb rrg rri rrl rrp rrr