a-a a-c aaa aac aan aao aap aar aay ac- aca acc acn aco acp acr acy an- ana anc ann ano anp anr any aoa aoc aon aoo aop aor ap- apa apc apn apo app apr apy ar- ara arc arn aro arp arr ary ay- aya ayc ayn ayo ayp ayr c-- caa cac can cao cap car cay cca ccc ccn cco ccp ccr cn- cna cnc cnn cno cnp cnr cny co- coa coc con coo cop cor coy cpa cpc cpn cpo cpp cpr cra crc crn cro crp crr cry cya cyc cyn cyo cyp cyr naa nac nan nao nap nar nay nca ncc ncn nco ncp ncr nna nnc nnn nno nnp no- noa noc non noo nop nor noy npa npc npn npo npp npr nra nrc nrn nro nrp nrr nry nya nyc nyn nyo nyp nyy oaa oac oan oao oap oar oc- oca occ ocn oco ocp ocr on- ona onc onn ono onp onr ony oo- ooa ooc oon ooo oop oor op- opa opc opn opo opp opr opy or- ora orc orn oro orp orr ory oya oyo p-p paa pac pan pao pap par pay pca pcc pcn pco pcp pcr pn- pna pnc pnn pno pnp pnr pny poa poc pon poo pop por poy ppa ppc ppn ppo ppp ppr pra prc prn pro prp prr pry py- pya pyc pyn pyo pyr ra- raa rac ran rao rap rar ray rca rcc rcn rco rcp rcr rna rnc rnn rno rnp rnr rny roa roc ron roo rop ror roy rpa rpc rpn rpo rpp rpr rra rrc rrn rrp rrr ry- rya ryc ryn ryo ryr ryy yaa yac yan yao yap yar yay yca ycc yco ycp ycy yna ynn ynp yny yoc yon yoo yop yor yoy ypa ypo yra yrc yrn yro yrp yyc yyy