a-a a-t aaa aag aan aao aap aat ag- aga agg agn ago agp agt an- ana ang ann ano anp ant aoa aog aon aoo aop aot ap- apa apg apn apo app apt at- ata atg atn ato atp att g-p gaa gag gan gao gap gat gga ggg ggn ggo ggp ggt gna gnn gno gnp gnt goa gog gon goo gop got gpa gpg gpn gpo gpp gpt gta gtg gtn gto gtp gtt naa nag nan nao nap nat nga ngg ngn ngo ngp ngt nna nng nnn nno nnp nnt no- noa nog non noo nop not npa npg npn npo npp npt nta ntg ntn nto ntp ntt oaa oag oan oao oap oat oga ogg ogn ogo ogp ogt on- ona ong onn ono onp ont oo- ooa oog oon ooo oop oot op- opa opg opn opo opp opt ot- ota otg otn oto otp ott p-p paa pag pan pao pap pat pga pgg pgn pgo pgp pgt pn- pna png pnn pno pnp pnt poa pog pon poo pop pot ppa ppg ppn ppo ppp ppt pt- pta ptg ptn pto ptp ptt taa tag tan tao tap tat tga tgg tgn tgo tgp tgt tna tng tnn tno tnp tnt to- toa tog ton too top tot tpa tpg tpn tpo tpp tpt tta ttg ttn tto ttp ttt