a-a aaa aad aae aak aan aap aax ad- ada add ade adk adn adp adx aea aed aee aek aen aep aex aka akd ake akk akn akp an- ana and ane ank ann anp anx ap- apa apd ape apk apn app apx ax- axa axe axk axn axp axx daa dad dae dak dan dap dax dda ddd dde ddk ddn ddp ddx de- dea ded dee dek den dep dex dka dke dkk dkp dkx dna dnd dne dnk dnn dnp dpa dpd dpe dpk dpn dpp dxd dxn dxp dxx eaa ead eae eak ean eap eax ed- eda edd ede edk edn edp edx eea eed eee eek een eep eex eka ekd eke ekp en- ena end ene enk enn enp ep- epa epd epe epn epp epx ex- exa exd exe exp exx ka- kaa kad kae kak kan kap kax kda kde kdk kdp kdx ke- kea ked kee kek ken kep kex kke kkk kkn kkp kn- kna knd kne knk knn knp knx kpa kpd kpe kpk kpn kpp naa nad nae nak nan nap nax nda ndd nde ndk ndn ndp ne- nea ned nee nek nen nep nex nka nke nkk nkn nkp nna nne nnk nnn nnp npa npd npe npn npp nxd p-p paa pad pae pak pan pap pax pda pdd pde pdk pdn pdp pdx pea ped pee pek pen pep pex pka pkd pke pkn pkp pn- pna pnd pne pnk pnn pnp pnx ppa ppd ppe ppk ppn ppp ppx pxe pxk xaa xad xak xan xap xda xde xdk xed xee xen xep xex xke xna xnk xpa xpd xpe xpn xpp xxp xxx