-al -er -ol a-a a-b a-c aaa aab aac aae aag aah aal aao aap aar ab- aba abb abc abe abg abh abl abo abp abr ac- aca acb acc ace acg ach acl aco acp acr aea aeb aec aee aeg aeh ael aeo aep aer ag- aga agb agc age agg agh agl ago agp agr aha ahb ahc ahe ahg ahh ahl aho ahp ahr al- ala alb alc ale alg alh all alo alp alr aoa aob aoc aoe aog aoh aol aoo aop aor ap- apa apb apc ape apg aph apl apo app apr ar- ara arb arc are arg arh arl aro arp arr b-p baa bab bac bae bag bah bal bao bap bar bba bbb bbc bbe bbg bbh bbl bbo bbp bbr bca bcb bcc bce bcg bch bcl bco bcp bcr be- bea beb bec bee beg beh bel beo bep ber bga bgb bgc bge bgg bgh bgl bgo bgp bgr bha bhb bhc bhe bhg bhh bhl bho bhp bhr bla blb blc ble blg blh bll blo blp blr boa bob boc boe bog boh bol boo bop bor bpa bpb bpc bpe bpg bph bpl bpo bpp bpr bra brb bre brg brh brl bro brp brr c-- caa cab cac cae cag cah cal cao cap car cba cbb cbc cbe cbg cbh cbl cbo cbp cbr cca ccb ccc cce ccg cch ccl cco ccp ccr ce- cea ceb cec cee ceg ceh cel ceo cep cer cga cgb cgc cge cgg cgh cgl cgo cgp cgr ch- cha chb chc che chg chh chl cho chp chr cl- cla clb clc cle clg clh cll clo clp clr co- coa cob coc coe cog coh col coo cop cor cpa cpb cpc cpe cpg cph cpl cpo cpp cpr cra crb crc cre crg crh crl cro crp crr eaa eab eac eae eag eah eal eao eap ear eba ebb ebc ebe ebg ebh ebl ebo ebp ebr ec- eca ecb ecc ece ecg ech ecl eco ecr eea eeb eec eee eeg eel eeo eep eer ega egb egc ege egg egh egl ego egp egr eha ehb ehc ehe ehg ehh ehl eho ehp ehr ela elb elc ele elg elh ell elo elp elr eo- eoa eob eoc eoe eog eoh eol eoo eop eor ep- epa epb epc epe epg eph epl epo epp epr era erb erc ere erg erh erl ero erp err g-p gaa gab gac gae gag gah gal gao gap gar gba gbc gbe gbg gbh gbl gbo gbp gbr gca gcb gcc gce gcg gch gcl gco gcp gcr ge- gea geb gec gee geg geh gel geo gep ger gga ggb ggc ggg ggh ggo ggp ggr gha ghb ghc ghe ghg ghh ghl gho ghp ghr gla glb glc gle glg glh gll glo glp glr goa gob goc goe gog goh gol goo gop gor gpa gpb gpc gpe gpg gph gpl gpo gpp gpr gra grb grc gre grg grh grl gro grp grr haa hab hac hae hag hah hal hao hap har hba hbb hbc hbe hbg hbh hbl hbo hbp hbr hca hcb hcc hce hcg hch hcl hco hcp hcr he- hea heb hec hee heg heh hel heo hep her hga hgb hgc hge hgg hgh hgl hgo hgp hgr hha hhb hhc hhe hhg hhh hhl hho hhp hhr hla hlb hlc hle hlg hlh hll hlo hlp hlr hoa hob hoc hoe hog hoh hol hoo hop hor hpa hpb hpc hpe hpg hph hpl hpo hpp hpr hr- hra hrb hrc hre hrg hrh hrl hro hrp hrr l-p la- laa lab lac lae lag lah lal lao lap lar lba lbb lbc lbe lbg lbh lbl lbo lbp lbr lca lcb lcc lce lcg lch lcl lco lcp lcr lea leb lec lee leg leh lel leo lep ler lga lgb lgc lge lgg lgh lgl lgo lgp lgr lha lhb lhc lhh lho lhp lhr lla llb llc lle llg lll llo llp llr loa lob loc loe log loh lol loo lop lor lpa lpb lpc lpe lpg lph lpl lpo lpp lpr lra lrb lrc lrg lrh lro lrp lrr oaa oab oac oae oag oah oal oao oap oar ob- oba obb obc obe obg obh obl obo obp obr oc- oca ocb occ ocg och ocl oco ocp ocr oea oeb oec oee oeg oeh oel oeo oep oer oga ogc oge ogg ogh ogl ogo ogp oha ohc ohe ohg ohh ohl oho ohp ohr ola olb olc ole olg oll olo olp oo- ooa oob ooc oog ooh ool ooo oop oor op- opa opb opc ope opg oph opl opo opp opr or- ora orb orc ore org orh orl oro orp orr p-p paa pab pac pae pag pah pal pao pap par pba pbb pbc pbe pbg pbl pbo pbp pbr pca pcb pcc pce pcg pch pcl pco pcp pcr pea peb pec pee peg peh pel peo pep per pga pgb pgc pge pgg pgh pgl pgo pgp pgr pha phb phc phe phg phl pho php phr pla plb plc ple plg plh pll plo plp plr poa pob poc poe pog poh pol poo pop por ppa ppb ppc ppe ppg pph ppl ppo ppp ppr pra prb prc pre prg prh prl pro prp prr ra- raa rab rac rae rag rah ral rao rap rar rba rbb rbc rbe rbg rbh rbl rbo rbp rbr rca rcb rcc rce rcg rch rcl rco rcp rcr re- rea reb rec ree reg reh rel reo rep rer rga rgb rgc rge rgg rgh rgo rgp rgr rh- rha rhb rhc rhe rhg rhh rhl rho rhp rhr rla rlc rle rlg rlh rll rlo rlp rlr roa rob roc roe rog roh rol roo rop ror rpa rpb rpc rpe rpg rph