a-a a-c a-t aaa aac aan aao aap aat aay ac- aca acc acn aco acp act acy an- ana anc ann ano anp ant any aoa aoc aon aoo aop aot ap- apa apc apn apo app apt apy at- ata atc atn ato atp att ay- aya ayc ayn ayo ayp ayt c-- caa cac can cao cap cat cay cca ccc ccn cco ccp cct cn- cna cnc cnn cno cnp cnt cny co- coa coc con coo cop cot coy cpa cpc cpn cpo cpp cpt cta ctc ctn cto ctp ctt cty cya cyc cyn cyo cyp cyt naa nac nan nao nap nat nay nca ncc ncn nco ncp nct nna nnc nnn nno nnp nnt no- noa noc non noo nop not noy npa npc npn npo npp npt nta ntc ntn nto ntp ntt nya nyc nyn nyo nyp nyt nyy oaa oac oan oao oap oat oc- oca occ ocn oco ocp oct on- ona onc onn ono onp ont ony oo- ooa ooc oon ooo oop oot op- opa opc opn opo opp opt opy ot- ota otc otn oto otp ott oya oyo p-p paa pac pan pao pap pat pay pca pcc pcn pco pcp pct pn- pna pnc pnn pno pnp pnt pny poa poc pon poo pop pot poy ppa ppc ppn ppo ppp ppt pt- pta ptc ptn pto ptp ptt pty py- pya pyc pyn pyo pyt taa tac tan tao tap tat tay tca tcc tcn tco tcp tct tna tnc tnn tno tnp tnt to- toa toc ton too top tot toy tpa tpc tpn tpo tpp tpt tta ttc ttn tto ttp ttt tty tya tyc tyn tyo typ tyt yaa yac yan yao yap yat yay yca ycc yco ycp ycy yna ynn ynp yny yoc yon yoo yop yot yoy ypa ypo yta ytc ytn yto ytp ytt yyc yyt yyy