orl orn oro orp orr orx ory ox- oxb oxi oxn oxo oxx oxy oyd oye oyi oyl oyo p-p pbb pbd pbe pbi pbl pbn pbo pbp pbr pbx pby pdb pdd pde pdh pdi pdl pdn pdo pdp pdr pdx peb ped pee peh pei pel pen peo pep per pex pey phb phd phe phi phl phn pho php phr phx phy pib pid pie pih pii pil pin pio pip pir pix plb pld ple plh pli pll pln plo plp plr plx ply pn- pnb pnd pne pnh pni pnl pnn pno pnp pnr pnx pny pob pod poe poh poi pol pon poo pop por pox poy ppb ppd ppe pph ppi ppl ppn ppo ppp ppr ppx prb prd pre prh pri prl prn pro prp prr prx pry pxe pxl pxr py- pyb pyd pye pyl pyn pyo pyr pyx rbb rbd rbe rbh rbi rbl rbn rbo rbp rbr rbx rdb rdd rde rdh rdi rdl rdn rdo rdp rdr rdx rdy re- reb red ree reh rei rel ren reo rep rer rex rey rh- rhb rhd rhe rhh rhi rhl rhn rho rhp rhr rib rid rie rih rii ril rin rio rip rir rix riy rld rle rlh rli rll rln rlo rlp rlr rly rnb rnd rnh rni rnn rno rnp rnr rny rob rod roe roh roi rol ron roo rop ror rox roy rpb rpd rpe rph rpi rpl rpn rpo rpp rpr rpx rrb rrd rrh rri rrl rrn rrp rrr rxp rxr ry- ryd rye ryn ryo ryr ryy xbe xbl xbr xbx xdb xde xdh xdi xdr xed xee xel xen xep xer xex xhd xhp xie xii xin xio xix xlb xld xli xlr xno xod xoi xon xoo xop xor xox xpb xpd xpe xpl xpn xpo xpp xrd xrx xry xxi xxl xxo xxp xxx xxy xyl xyp xyr xyy ybe ybi ybl ybp ybr yby yde ydl ydn ydo ydy yeb yed yee yeh yei yel yen yeo yep yer yex yey yhe yhi yid yie yih yii yin yio yip yir yld yle yli yll ylr yly ynd yne ynn ynp yny yob yod yoe yoi yol yon yoo yop yor yox yoy ypd ypl ypo yre yrn yro yrp yxe yxy yyb yye yyy