-er a-a a-i aaa aae aai aan aap aar aav aea aee aei aen aep aer aev ai- aia aie aii ain aip air aiv an- ana ane ani ann anp anr anv ap- apa ape api apn app apr apv ar- ara are ari arn arp arr arv av- ava ave avi avn avp avr eaa eae eai ean eap ear eav eea eee een eep eer eev eia eie eii ein eip eir eiv en- ena ene eni enn enp enr env ep- epa epe epi epn epp epr era ere eri ern erp err erv eva eve evi evn evp evr evv i-v ia- iaa iae iai ian iap iar iav ie- iea iee iei ien iep ier iev iia iie iii iin iip iir in- ina ine ini inn inp inr inv ipa ipe ipi ipn ipp ipr ipv ir- ira ire iri irn irp irr irv iva ive ivi ivp ivr ivv n-i naa nae nai nan nap nar nav ne- nea nee nei nen nep ner nev nia nie nii nin nip nir niv nna nne nni nnn nnp nnv npa npe npi npn npp npr npv nra nre nri nrn nrp nrr nrv nva nve nvi nvn nvp nvv p-p paa pae pai pan pap par pav pea pee pei pen pep per pev pia pie pii pin pip pir piv pn- pna pne pni pnn pnp pnr pnv ppa ppe ppi ppn ppp ppr ppv pra pre pri prn prp prr prv pva pve pvi pvn pvp pvr pvv ra- raa rae rai ran rap rar rav re- rea ree rei ren rep rer rev ria rie rii rin rip rir riv rna rni rnn rnp rnr rnv rpa rpe rpi rpn rpp rpr rpv rra rri rrn rrp rrr rva rve rvi rvn rvp rvr rvv v-a v-e vaa vae vai van vap var vav vea vee vei ven vep ver vi- via vie vii vin vip vir viv vn- vna vni vnp vnr vnv vpa vpe vpi vpn vpp vpr vra vre vri vrn vrp vrr vva vvi vvr vvv