pba pbb pbd pbe pbl pbm pbn pbo pbp pbr pbt pda pdb pdd pde pdl pdm pdn pdo pdp pdr pdt pea peb ped pee pel pem pen peo pep per pet pla plb pld ple pll plm pln plo plp plr plt pma pmb pmd pme pml pmm pmn pmo pmp pmr pmt pn- pna pnb pnd pne pnl pnm pnn pno pnp pnr pnt poa pob pod poe pol pom pon poo pop por pot ppa ppb ppd ppe ppl ppm ppn ppo ppp ppr ppt pra prb prd pre prl prm prn pro prp prr prt pt- pta ptb ptd pte ptl ptm ptn pto ptp ptr ptt ra- raa rab rad rae ral ram ran rao rap rar rat rba rbb rbd rbe rbl rbm rbn rbo rbp rbr rbt rda rdb rdd rde rdl rdm rdn rdo rdp rdr rdt re- rea reb red ree rel rem ren reo rep rer ret rla rld rle rll rlm rln rlo rlp rlr rlt rma rmb rmd rme rml rmm rmn rmo rmp rmr rmt rna rnb rnd rnm rnn rno rnp rnr rnt roa rob rod roe rol rom ron roo rop ror rot rpa rpb rpd rpe rpl rpm rpn rpo rpp rpr rpt rra rrb rrd rrl rrm rrn rrp rrr rrt rta rtb rtd rte rtl rtm rtn rto rtp rtr rtt taa tab tad tae tal tam tan tao tap tar tat tba tbb tbd tbe tbl tbm tbn tbo tbp tbr tbt tda tdb tdd tde tdl tdm tdn tdo tdp tdr tdt te- tea teb ted tee tel tem ten teo tep ter tet tla tld tle tll tlm tln tlo tlp tlr tlt tma tmb tmd tme tml tmm tmn tmo tmp tmr tmt tna tnb tnd tne tnl tnm tnn tno tnp tnr tnt to- toa tob tod toe tol tom ton too top tor tot tpa tpb tpd tpe tpl tpm tpn tpo tpp tpr tpt tra trb trd tre trl trm trn tro trp trr trt tta ttb ttd tte ttl ttm ttn tto ttp ttr ttt