-er a-a a-b aaa aab aad aae aag aah aao aap aar ab- aba abb abd abe abg abh abo abp abr ad- ada adb add ade adg adh ado adp adr aea aeb aed aee aeg aeh aeo aep aer ag- aga agb agd age agg agh ago agp agr aha ahb ahd ahe ahg ahh aho ahp ahr aoa aob aod aoe aog aoh aoo aop aor ap- apa apb apd ape apg aph apo app apr ar- ara arb ard are arg arh aro arp arr b-p baa bab bad bae bag bah bao bap bar bba bbb bbd bbe bbg bbh bbo bbp bbr bda bdb bdd bde bdg bdh bdo bdp bdr be- bea beb bed bee beg beh beo bep ber bga bgb bgd bge bgg bgh bgo bgp bgr bha bhb bhd bhe bhg bhh bho bhp bhr boa bob bod boe bog boh boo bop bor bpa bpb bpd bpe bpg bph bpo bpp bpr bra brb brd bre brg brh bro brp brr daa dab dad dae dag dah dao dap dar dba dbb dbd dbe dbg dbh dbo dbp dbr dda ddb ddd dde ddg ddh ddo ddp ddr de- dea deb ded dee deg deh deo dep der dga dgd dge dgg dgh dgp dgr dh- dha dhb dhd dhe dhh dho dhp dhr doa dob dod doe dog doh doo dop dor dpa dpb dpd dpe dpg dph dpo dpp dpr dra drb drd dre drg dro drp drr eaa eab ead eae eag eah eao eap ear eba ebb ebd ebe ebg ebh ebo ebp ebr ed- eda edb edd ede edg edh edo edp edr eea eeb eed eee eeg eeo eep eer ega egb egd ege egg egh ego egp egr eha ehb ehd ehe ehg ehh eho ehp ehr eo- eoa eob eod eoe eog eoh eoo eop eor ep- epa epb epd epe epg eph epo epp epr era erb erd ere erg erh ero erp err g-d g-p gaa gab gad gae gag gah gao gap gar gba gbd gbe gbg gbh gbo gbp gbr gda gdb gdd gde gdh gdo gdp gdr ge- gea geb ged gee geg geh geo gep ger gga ggb ggd ggg ggh ggo ggp ggr gha ghb ghd ghe ghg ghh gho ghp ghr goa gob god goe gog goh goo gop gor gpa gpb gpd gpe gpg gph gpo gpp gpr gra grb grd gre grg grh gro grp grr haa hab had hae hag hah hao hap har hba hbb hbd hbe hbg hbh hbo hbp hbr hda hdb hdd hde hdg hdh hdo hdp hdr he- hea heb hed hee heg heh heo hep her hga hgb hge hgg hgh hgo hgp hgr hha hhb hhd hhe hhg hhh hho hhp hhr hoa hob hod hoe hog hoh hoo hop hor hpa hpb hpd hpe hpg hph hpo hpp hpr hr- hra hrb hrd hre hrg hrh hro hrp hrr oaa oab oad oae oag oah oao oap oar ob- oba obb obd obe obg obh obo obp obr oda odb odd ode odg odh odo odp odr oea oeb oed oee oeg oeh oeo oep oer oga ogd oge ogg ogh ogo ogp oha ohd ohe ohg ohh oho ohp ohr oo- ooa oob ood oog ooh ooo oop oor op- opa opb opd ope opg oph opo opp opr or- ora orb ord ore org orh oro orp orr p-p paa pab pad pae pag pah pao pap par pba pbb pbd pbe pbg pbo pbp pbr pda pdb pdd pde pdg pdh pdo pdp pdr pea peb ped pee peg peh peo pep per pga pgb pgd pge pgg pgh pgo pgp pgr pha phb phd phe phg pho php phr poa pob pod poe pog poh poo pop por ppa ppb ppd ppe ppg pph ppo ppp ppr pra prb prd pre prg prh pro prp prr ra- raa rab rad rae rag rah rao rap rar rba rbb rbd rbe rbg rbh rbo rbp rbr rda rdb rdd rde rdg rdh rdo rdp rdr re- rea reb red ree reg reh reo rep rer rga rgb rgd rge rgg rgh rgo rgp rgr rh- rha rhb rhd rhe rhg rhh rho rhp rhr roa rob rod roe rog roh roo rop ror rpa rpb rpd rpe rpg rph rpo rpp rpr rra rrb rrd rrg rrh rrp rrr