a-a aaa aae aag aan aap aea aee aeg aen aep ag- aga age agg agn agp an- ana ane ang ann anp ap- apa ape apg apn app eaa eae eag ean eap eea eee eeg een eep ega ege egg egn egp en- ena ene eng enn enp ep- epa epe epg epn epp g-p gaa gae gag gan gap ge- gea gee geg gen gep gga ggg ggn ggp gna gne gnn gnp gpa gpe gpg gpn gpp naa nae nag nan nap ne- nea nee neg nen nep nga nge ngg ngn ngp nna nne nng nnn nnp npa npe npg npn npp p-p paa pae pag pan pap pea pee peg pen pep pga pge pgg pgn pgp pn- pna pne png pnn pnp ppa ppe ppg ppn ppp