-er -ic a-a a-b a-c a-i a-t aaa aab aac aad aae aag aai aao aap aar aat ab- aba abb abc abd abe abg abi abo abp abr abt ac- aca acb acc acd ace acg aci aco acp acr act ad- ada adb adc add ade adg adi ado adp adr adt aea aeb aec aed aee aeg aei aeo aep aer aet ag- aga agb agc agd age agg agi ago agp agr agt ai- aia aib aic aid aie aig aii aio aip air ait aoa aob aoc aod aoe aog aoi aoo aop aor aot ap- apa apb apc apd ape apg api apo app apr apt ar- ara arb arc ard are arg ari aro arp arr art at- ata atb atc atd ate atg ati ato atp atr att b-p baa bab bac bad bae bag bai bao bap bar bat bba bbb bbc bbd bbe bbg bbi bbo bbp bbr bbt bca bcb bcc bcd bce bcg bci bco bcp bcr bct bda bdb bdc bdd bde bdg bdi bdo bdp bdr bdt be- bea beb bec bed bee beg bei beo bep ber bet bga bgb bgc bgd bge bgg bgi bgo bgp bgr bgt bi- bia bib bic bid bie big bii bio bip bir bit boa bob boc bod boe bog boi boo bop bor bot bpa bpb bpc bpd bpe bpg bpi bpo bpp bpr bpt bra brb brd bre brg bri bro brp brr brt bta btb btc btd bte btg bti bto btp btr btt c-- caa cab cac cad cae cag cai cao cap car cat cba cbb cbc cbd cbe cbg cbi cbo cbp cbr cbt cca ccb ccc ccd cce ccg cci cco ccp ccr cct cda cdb cdc cdd cde cdg cdi cdo cdp cdr cdt ce- cea ceb cec ced cee ceg cei ceo cep cer cet cga cgb cgc cgd cge cgg cgi cgo cgp cgr cgt ci- cia cib cic cid cie cig cii cio cip cir cit co- coa cob coc cod coe cog coi coo cop cor cot cpa cpb cpc cpd cpe cpg cpi cpo cpp cpr cpt cra crb crc crd cre crg cri cro crp crr crt cta ctb ctc ctd cte ctg cti cto ctp ctr ctt daa dab dac dad dae dag dai dao dap dar dat dba dbb dbc dbd dbe dbg dbi dbo dbp dbr dbt dca dcb dcc dcd dce dcg dci dco dcp dcr dct dda ddb ddc ddd dde ddg ddi ddo ddp ddr ddt de- dea deb dec ded dee deg dei deo dep der det dga dgc dgd dge dgg dgi dgp dgr dgt di- dia dib dic did die dig dii dio dip dir dit doa dob doc dod doe dog doi doo dop dor dot dpa dpb dpc dpd dpe dpg dpi dpo dpp dpr dpt dra drb drc drd dre drg dri dro drp drr drt dta dtb dtc dtd dte dtg dti dto dtp dtr dtt eaa eab eac ead eae eag eai eao eap ear eat eba ebb ebc ebd ebe ebg ebi ebo ebp ebr ebt ec- eca ecb ecc ecd ece ecg eci eco ecr ect ed- eda edb edc edd ede edg edi edo edp edr edt eea eeb eec eed eee eeg eeo eep eer eet ega egb egc egd ege egg egi ego egp egr egt eia eib eic eid eie eig eii eio eip eir eit eo- eoa eob eoc eod eoe eog eoi eoo eop eor eot ep- epa epb epc epd epe epg epi epo epp epr ept era erb erc erd ere erg eri ero erp err ert eta etb etc etd ete etg eti eto etp etr ett g-d g-p gaa gab gac gad gae gag gai gao gap gar gat gba gbc gbd gbe gbg gbi gbo gbp gbr gbt gca gcb gcc gcd gce gcg gci gco gcp gcr gct gda gdb gdc gdd gde gdi gdo gdp gdr gdt ge- gea geb gec ged gee geg gei geo gep ger get gga ggb ggc ggd ggg ggi ggo ggp ggr ggt gia gib gic gid gie gig gii gio gip gir git goa gob goc god goe gog goi goo gop gor got gpa gpb gpc gpd gpe gpg gpi gpo gpp gpr gpt gra grb grc grd gre grg gri gro grp grr grt gta gtb gtc gtd gte gtg gti gto gtp gtr gtt i-d ia- iaa iab iac iad iae iag iai iao iap iar iat iba ibb ibc ibd ibe ibg ibi ibo ibp ibr ibt ica icb icc icd ice icg ici ico icp icr ict ida idb idc idd ide idg idi ido idp idr idt ie- iea iec ied iee ieg iei iep ier iet iga igb igc igd ige igg igi igo igp igr igt iia iib iic iid iie iii iio iip iir iit io- ioa iob ioc iod ioe iog ioi ioo iop ior iot ipa ipb ipc ipd ipe ipg ipi ipo ipp ipr ipt ir- ira irb irc ird ire irg iri iro irp irr irt ita itb itc itd ite itg iti ito itp itt o-i oaa oab oac oad oae oag oai oao oap oar oat ob- oba obb obc obd obe obg obi obo obp obr obt oc- oca ocb occ ocd ocg oci oco ocp ocr oct oda odb odc odd ode odg odi odo odp odr odt oea oeb oec oed oee oeg oei oeo oep oer oet oga ogc ogd oge ogg ogi ogo ogp ogt oia oib oic oid oie oii oio oip oir oit oo- ooa oob ooc ood oog ooi ooo oop oor oot op- opa opb opc opd ope opg opi opo opp opr opt or- ora orb orc ord ore org ori oro orp orr ort ot- ota otb otc otd ote otg oti oto otp otr ott p-p paa pab pac pad pae