-er a-a aaa aae aak aam aan aap aar aea aee aek aem aen aep aer aka ake akk akm akn akp akr ama ame amk amm amn amp amr an- ana ane ank anm ann anp anr ap- apa ape apk apm apn app apr ar- ara are ark arm arn arp arr eaa eae eak eam ean eap ear eea eee eek eem een eep eer eka eke ekp ekr em- ema eme emk emm emn emp emr en- ena ene enk enm enn enp enr ep- epa epe epm epn epp epr era ere erk erm ern erp err ka- kaa kae kak kam kan kap kar ke- kea kee kek kem ken kep ker kke kkk kkm kkn kkp kkr kma kme kmk kmm kmp kn- kna kne knk knm knn knp knr kpa kpe kpk kpm kpn kpp kpr kra krk krn krp krr m-r maa mae mak mam man map mar mea mee mek mem men mep mer mka mke mkk mkm mkn mkp mkr mma mme mmk mmm mmn mmp mmr mna mne mnk mnm mnn mnp mnr mpa mpe mpk mpm mpn mpp mpr mra mre mrk mrm mrn mrp mrr naa nae nak nam nan nap nar ne- nea nee nek nem nen nep ner nka nke nkk nkm nkn nkp nkr nma nme nmk nmm nmn nmp nmr nna nne nnk nnm nnn nnp npa npe npm npn npp npr nra nre nrk nrm nrn nrp nrr p-p paa pae pak pam pan pap par pea pee pek pem pen pep per pka pke pkm pkn pkp pkr pma pme pmk pmm pmn pmp pmr pn- pna pne pnk pnm pnn pnp pnr ppa ppe ppk ppm ppn ppp ppr pra pre prk prm prn prp prr ra- raa rae rak ram ran rap rar re- rea ree rek rem ren rep rer rke rkk rkm rkp rma rme rmm rmn rmp rmr rna rnm rnn rnp rnr rpa rpe rpk rpm rpn rpp rpr rra rrk rrm rrn rrp rrr