-er -ic a-a a-b a-c a-i a-t aaa aab aac aae aai aao aap aar aat aav ab- aba abb abc abe abi abo abp abr abt abv ac- aca acb acc ace aci aco acp acr act acv aea aeb aec aee aei aeo aep aer aet aev ai- aia aib aic aie aii aio aip air ait aiv aoa aob aoc aoe aoi aoo aop aor aot aov ap- apa apb apc ape api apo app apr apt apv ar- ara arb arc are ari aro arp arr art arv at- ata atb atc ate ati ato atp atr att atv av- ava avb avc ave avi avo avp avr avt b-p baa bab bac bae bai bao bap bar bat bav bba bbb bbc bbe bbi bbo bbp bbr bbt bca bcb bcc bce bci bco bcp bcr bct bcv be- bea beb bec bee bei beo bep ber bet bev bi- bia bib bic bie bii bio bip bir bit biv boa bob boc boe boi boo bop bor bot bov bpa bpb bpc bpe bpi bpo bpp bpr bpt bpv bra brb bre bri bro brp brr brt brv bta btb btc bte bti bto btp btr btt btv bva bvb bvc bve bvi bvo bvp bvr bvt bvv c-- caa cab cac cae cai cao cap car cat cav cba cbb cbc cbe cbi cbo cbp cbr cbt cbv cca ccb ccc cce cci cco ccp ccr cct ccv ce- cea ceb cec cee cei ceo cep cer cet cev ci- cia cib cic cie cii cio cip cir cit civ co- coa cob coc coe coi coo cop cor cot cov cpa cpb cpc cpe cpi cpo cpp cpr cpt cpv cra crb crc cre cri cro crp crr crt crv cta ctb ctc cte cti cto ctp ctr ctt ctv cva cvb cvc cve cvi cvo cvp cvr cvt cvv eaa eab eac eae eai eao eap ear eat eav eba ebb ebc ebe ebi ebo ebp ebr ebt ebv ec- eca ecb ecc ece eci eco ecr ect ecv eea eeb eec eee eeo eep eer eet eev eia eib eic eie eii eio eip eir eit eiv eo- eoa eob eoc eoe eoi eoo eop eor eot ep- epa epb epc epe epi epo epp epr ept era erb erc ere eri ero erp err ert erv eta etb etc ete eti eto etp etr ett etv eva evb evc eve evi evo evp evr evt evv i-v ia- iaa iab iac iae iai iao iap iar iat iav iba ibb ibc ibe ibi ibo ibp ibr ibt ibv ica icb icc ice ici ico icp icr ict icv ie- iea iec iee iei iep ier iet iev iia iib iic iie iii iio iip iir iit io- ioa iob ioc ioe ioi ioo iop ior iot iov ipa ipb ipc ipe ipi ipo ipp ipr ipt ipv ir- ira irb irc ire iri iro irp irr irt irv ita itb itc ite iti ito itp itt itv iva ivb ivc ive ivi ivo ivp ivr ivt ivv o-i oaa oab oac oae oai oao oap oar oat oav ob- oba obb obc obe obi obo obp obr obt obv oc- oca ocb occ oci oco ocp ocr oct ocv oea oeb oec oee oei oeo oep oer oet oia oib oic oie oii oio oip oir oit oiv oo- ooa oob ooc ooi ooo oop oor oot oov op- opa opb opc ope opi opo opp opr opt opv or- ora orb orc ore ori oro orp orr ort orv ot- ota otb otc ote oti oto otp otr ott otv ov- ova ovb ovc ove ovi ovo ovp ovv p-p paa pab pac pae pai pao pap par pat pav pba pbb pbc pbe pbi pbo pbp pbr pbt pca pcb pcc pce pci pco pcp pcr pct pcv pea peb pec pee pei peo pep per pet pev pia pib pic pie pii pio pip pir pit piv poa pob poc poe poi poo pop por pot pov ppa ppb ppc ppe ppi ppo ppp ppr ppt ppv pra prb prc pre pri pro prp prr prt prv pt- pta ptb ptc pte pti pto ptp ptr ptt ptv pva pvb pvc pve pvi pvo pvp pvr pvt pvv ra- raa rab rac rae rai rao rap rar rat rav rba rbb rbc rbe rbi rbo rbp rbr rbt rca rcb rcc rce rci rco rcp rcr rct rcv re- rea reb rec ree rei reo rep rer ret rev ria rib ric rie rii rio rip rir rit riv roa rob roc roe roi roo rop ror rot rov rpa rpb rpc rpe rpi rpo rpp rpr rpt rpv rra rrb rrc rri rrp rrr rrt rta rtb rtc rte rti rto rtp rtr rtt rtv rva rvb rvc rve rvi rvo rvp rvr rvt rvv taa tab tac tae tai tao tap tar tat tav tba tbb tbc tbe tbi tbo tbp tbr tbt tbv tca tcb tcc tce tci tco tcp tcr tct tcv te- tea teb tec tee tei teo tep ter tet tev tia tib tic tie tii tio tip tir tit tiv to- toa tob toc toe toi too top tor tot tov tpa tpb tpc tpe tpi tpo tpp tpr tpt tpv tra trb trc tre tri tro trp trr trt trv tta ttb ttc tte tti tto ttp ttr ttt ttv tva tvb tvc tve tvi tvo tvp tvr tvt v-a v-e vaa vab vac vae vai vao vap var vat vav vba vbc vbi vbo vbr vbv vca vcc vce vci vco vcp vcr vct vea veb vec vee vei veo vep ver vet vi- via vib vic vie vii vio vip vir vit viv voa vob voc voe voi voo vop vor vot vov vpa vpb vpc vpe vpi vpo vpp vpr vpt vra vrb vrc vre vri vrp vrr vrt vta vtb vtc vte vti vto