omm omn omo omp omr omx omy on- ona onb onc oni onl onn ono onp onr onx ony oo- ooa oob ooc ooi ool oom oon ooo oop oor oox op- opa opb opc opi opl opm opn opo opp opr opx opy or- ora orb orc ori orl orm orn oro orp orr orx ory ox- oxa oxb oxc oxi oxn oxo oxx oxy oya oyi oyl oyo p-p paa pab pac pai pal pam pan pao pap par pax pay pba pbb pbc pbi pbl pbm pbn pbo pbp pbr pbx pby pca pcb pcc pci pcl pcm pcn pco pcp pcr pcx pia pib pic pii pil pim pin pio pip pir pix pla plb plc pli pll plm pln plo plp plr plx ply pma pmb pmc pmi pml pmm pmn pmo pmp pmr pmx pn- pna pnb pnc pni pnl pnm pnn pno pnp pnr pnx pny poa pob poc poi pol pom pon poo pop por pox poy ppa ppb ppc ppi ppl ppm ppn ppo ppp ppr ppx pra prb prc pri prl prm prn pro prp prr prx pry pxc pxl pxm pxr py- pya pyb pyc pyl pym pyn pyo pyr pyx ra- raa rab rac rai ral ram ran rao rap rar rax ray rba rbb rbc rbi rbl rbm rbn rbo rbp rbr rbx rca rcb rcc rci rcl rcm rcn rco rcp rcr rcx ria rib ric rii ril rim rin rio rip rir rix riy rla rlc rli rll rlm rln rlo rlp rlr rly rma rmb rmc rmi rml rmm rmn rmo rmp rmr rmx rna rnb rnc rni rnm rnn rno rnp rnr rny roa rob roc roi rol rom ron roo rop ror rox roy rpa rpb rpc rpi rpl rpm rpn rpo rpp rpr rpx rra rrb rrc rri rrl rrm rrn rrp rrr rxp rxr ry- rya ryc rym ryn ryo ryr ryy xaa xac xal xam xan xap xar xbc xbl xbr xbx xcb xci xcl xcp xcr xcx xia xic xii xin xio xix xla xlb xli xlm xlr xma xmc xmi xml xmm xmo xmp xmr xmx xna xnc xno xoa xoc xoi xom xon xoo xop xor xox xpa xpb xpc xpl xpm xpn xpo xpp xrc xrx xry xxi xxl xxo xxp xxx xxy xyl xyp xyr xyy yaa yab yac yai yal yam yan yao yap yar yax yay ybc ybi ybl ybm ybp ybr yby yca ycc yci ycl yco ycp ycy yii yim yin yio yip yir ylc yli yll ylm ylr yly yma ymc ymi yml ymm ymo yna ynn ynp yny yob yoc yoi yol yom yon yoo yop yor yox yoy ypa ypl ypo yra yrc yrn yro yrp yxa yxy yyb yyc yyy