-er a-a aaa aad aae aan aap aar aav ad- ada add ade adn adp adr adv aea aed aee aen aep aer aev an- ana and ane ann anp anr anv ap- apa apd ape apn app apr apv ar- ara ard are arn arp arr arv av- ava avd ave avn avp avr daa dad dae dan dap dar dav dda ddd dde ddn ddp ddr de- dea ded dee den dep der dev dna dnd dne dnn dnp dnr dpa dpd dpe dpn dpp dpr dpv dra drd dre drn drp drr drv dva dvd dve dvn dvp dvr eaa ead eae ean eap ear eav ed- eda edd ede edn edp edr eea eed eee een eep eer eev en- ena end ene enn enp enr env ep- epa epd epe epn epp epr era erd ere ern erp err erv eva evd eve evn evp evr evv naa nad nae nan nap nar nav nda ndd nde ndn ndp ndr ndv ne- nea ned nee nen nep ner nev nna nne nnn nnp nnv npa npd npe npn npp npr npv nra nrd nre nrn nrp nrr nrv nva nvd nve nvn nvp nvv p-p paa pad pae pan pap par pav pda pdd pde pdn pdp pdr pdv pea ped pee pen pep per pev pn- pna pnd pne pnn pnp pnr pnv ppa ppd ppe ppn ppp ppr ppv pra prd pre prn prp prr prv pva pvd pve pvn pvp pvr pvv ra- raa rad rae ran rap rar rav rda rdd rde rdn rdp rdr rdv re- rea red ree ren rep rer rev rna rnd rnn rnp rnr rnv rpa rpd rpe rpn rpp rpr rpv rra rrd rrn rrp rrr rva rvd rve rvn rvp rvr rvv v-a v-e vaa vad vae van vap var vav vdd vde vdp vdr vdv vea ved vee ven vep ver vn- vna vnd vnp vnr vnv vpa vpd vpe vpn vpp vpr vra vrd vre vrn vrp vrr vva vvr vvv