iyy o-i oaa oab oac oad oae oah oai oao oap oar oas ob- oba obb obc obd obe obh obi obo obp obr obs oby oc- oca ocb occ ocd och oci oco ocp ocr ocs oda odb odc odd ode odh odi odo odp odr ods oea oeb oec oed oee oeh oei oeo oep oer oes oey oha ohc ohd ohe ohh ohi oho ohp ohr ohs oia oib oic oid oie oii oio oip oir ois oo- ooa oob ooc ood ooh ooi ooo oop oor oos op- opa opb opc opd ope oph opi opo opp opr ops opy or- ora orb orc ord ore orh ori oro orp orr ors ory os- osa osb osc osd ose osh osi oso osp osr oss oya oyd oye oyi oyo oys p-p paa pab pac pad pae pah pai pao pap par pas pay pba pbb pbc pbd pbe pbi pbo pbp pbr pbs pby pca pcb pcc pcd pce pch pci pco pcp pcr pcs pda pdb pdc pdd pde pdh pdi pdo pdp pdr pds pea peb pec ped pee peh pei peo pep per pes pey pha phb phc phd phe phi pho php phr phs phy pia pib pic pid pie pih pii pio pip pir pis poa pob poc pod poe poh poi poo pop por pos poy ppa ppb ppc ppd ppe pph ppi ppo ppp ppr pps pra prb prc prd pre prh pri pro prp prr prs pry ps- psa psb psc psd pse psh psi pso psp psr pss psy py- pya pyb pyc pyd pye pyo pyr pys ra- raa rab rac rad rae rah rai rao rap rar ras ray rba rbb rbc rbd rbe rbh rbi rbo rbp rbr rbs rca rcb rcc rcd rce rch rci rco rcp rcr rcs rda rdb rdc rdd rde rdh rdi rdo rdp rdr rds rdy re- rea reb rec red ree reh rei reo rep rer res rey rh- rha rhb rhc rhd rhe rhh rhi rho rhp rhr rhs ria rib ric rid rie rih rii rio rip rir ris riy roa rob roc rod roe roh roi roo rop ror ros roy rpa rpb rpc rpd rpe rph rpi rpo rpp rpr rps rra rrb rrc rrd rrh rri rrp rrr rrs rsa rsb rsc rsd rse rsh rsi rso rsp rsr rss ry- rya ryc ryd rye ryo ryr rys ryy saa sab sac sad sae sah sai sao sap sar sas say sba sbb sbc sbd sbe sbh sbi sbo sbp sbr sbs sby sca scb scc scd sce sch sci sco scp scr scs sda sdb sdc sdd sde sdh sdi sdo sdp sdr sds sdy se- sea seb sec sed see seh sei seo sep ser ses sey sh- sha shb shc shd she shh shi sho shp shr shs shy sia sib sic sid sie sih sii sio sip sir sis soa sob soc sod soe soh soi soo sop sor sos soy spa spb spc spd spe sph spi spo spp spr sps spy sr- sra srb src srd sre srh sri sro srp srr srs sry ss- ssa ssb ssc ssd sse ssh ssi sso ssp ssr sss sy- sya syb syc syd sye syh syi syp syr sys yaa yab yac yad yae yah yai yao yap yar yas yay ybc ybe ybi ybp ybr ybs yby yca ycc ycd yce ych yci yco ycp ycs ycy yda yde ydo yds ydy yea yeb yec yed yee yeh yei yeo yep yer yes yey yha yhc yhe yhi yhs yid yie yih yii yio yip yir yis yob yoc yod yoe yoi yoo yop yor yos yoy ypa ypd ypo yps yra yrc yre yro yrp yrs ysa ysb ysc yse ysi yso ysp ysr yss ysy yyb yyc yye yys yyy