pdg pdh pdl pdo pdp pds pdu pea pec ped pee peg peh pel peo pep pes peu pga pgc pgd pge pgg pgh pgl pgo pgp pgs pha phc phd phe phg phl pho php phs phu pla plc pld ple plg plh pll plo plp pls plu poa poc pod poe pog poh pol poo pop pos pou ppa ppc ppd ppe ppg pph ppl ppo ppp pps ppu ps- psa psc psd pse psg psh psl pso psp pss psu pua puc pud pue pug puh pul pup pus puu saa sac sad sae sag sah sal sao sap sas sau sca scc scd sce scg sch scl sco scp scs scu sda sdc sdd sde sdg sdh sdl sdo sdp sds sdu se- sea sec sed see seg seh sel seo sep ses seu sga sgc sgd sge sgg sgh sgl sgo sgp sgs sgu sh- sha shc shd she shg shh shl sho shp shs shu sla slc sld sle slg slh sll slo slp sls slu soa soc sod soe sog soh sol soo sop sos sou spa spc spd spe spg sph spl spo spp sps spu ss- ssa ssc ssd sse ssg ssh ssl sso ssp sss ssu sua suc sud sue sug suh sul suo sup sus suu ua- uaa uac uad uae uag uah ual uao uap uas uau uca ucc ucd uce ucg uch ucl uco ucp ucs ucu uda udc udd ude udg udl udo udp uds udu uea uec ued uee ueg ueh uel uep ues uga ugc uge ugg ugh ugl ugo ugp ugs ugu uha uhc uhd uhe uhh uhl uho uhp uhs uhu ula ulc uld ule ulg ull ulo ulp uls ulu uoa uoc uod uoe uog uol uoo uop uos up- upa upc upd upe upg uph upo upp ups upu usa usc usd use usg ush usl uso usp uss usu uua uuc uue uug uus uuu