iii iim iio iip iis iit iix im- imi imm imo imp ims imt imx io- ioi iom ioo iop ios iot ipi ipm ipo ipp ips ipt ipx is- isi ism iso isp iss ist iti itm ito itp its itt itx ixi m-o mi- mii mim mio mip mis mit mix mmi mmm mmo mmp mms mmt mmx moi mom moo mop mos mot mox mpi mpm mpo mpp mps mpt mpx msi msm mso msp mss mst msx mti mtm mto mtp mts mtt mtx mxi mxp mxs o-i oii oim oio oip ois oit om- omi omm omo omp oms omt omx oo- ooi oom ooo oop oos oot oox op- opi opm opo opp ops opt opx os- osi osm oso osp oss ost osx ot- oti otm oto otp ots ott ox- oxi oxo oxt oxx p-p pii pim pio pip pis pit pix pmi pmm pmo pmp pms pmt pmx poi pom poo pop pos pot pox ppi ppm ppo ppp pps ppt ppx ps- psi psm pso psp pss pst psx pt- pti ptm pto ptp pts ptt ptx pxm pxs pxt sii sim sio sip sis sit six smi smm smo smp sms smt smx soi som soo sop sos sot sox spi spm spo spp sps spt spx ss- ssi ssm sso ssp sss sst ssx sti stm sto stp sts stt stx sxi sxm sxs sxt t-x tii tim tio tip tis tit tix tmi tmm tmo tmp tms tmt tmx to- toi tom too top tos tot tox tpi tpm tpo tpp tps tpt tpx tsi tsm tso tsp tss tst tsx tti ttm tto ttp tts ttt ttx txi txs txt xii xio xis xit xix xmi xmm xmo xmp xms xmt xmx xoi xom xoo xop xos xot xox xpm xpo xpp xps xpt xsi xsm xsp xss xst xti xtm xtp xts xtx xxi xxo xxp xxx