-th hhh hhm hho hhp hhr hht hmh hmm hmo hmp hmr hmt hmx hoh hom hoo hop hor hot hox hph hpm hpo hpp hpr hpt hr- hrh hrm hro hrp hrr hrt hth htm hto htp htr htt htx hxm m-o m-r mhh mhm mho mhp mhr mht mhx mmh mmm mmo mmp mmr mmt mmx moh mom moo mop mor mot mox mph mpm mpo mpp mpr mpt mpx mrh mrm mro mrp mrr mrt mrx mth mtm mto mtp mtr mtt mtx mxp mxr ohh ohm oho ohp ohr oht om- omh omm omo omp omr omt omx oo- ooh oom ooo oop oor oot oox op- oph opm opo opp opr opt opx or- orh orm oro orp orr ort orx ot- oth otm oto otp otr ott ox- oxo oxt oxx p-p phm pho php phr pht phx pmh pmm pmo pmp pmr pmt pmx poh pom poo pop por pot pox pph ppm ppo ppp ppr ppt ppx prh prm pro prp prr prt prx pt- pth ptm pto ptp ptr ptt ptx pxm pxr pxt rh- rhh rhm rho rhp rhr rht rmh rmm rmo rmp rmr rmt rmx roh rom roo rop ror rot rox rph rpm rpo rpp rpr rpt rpx rrh rrm rrp rrr rrt rtm rto rtp rtr rtt rtx rxp rxr t-x th- thh thm tho thp thr tht thx tmh tmm tmo tmp tmr tmt tmx to- toh tom too top tor tot tox tph tpm tpo tpp tpr tpt tpx trh trm tro trp trr trt trx tth ttm tto ttp ttr ttt ttx txt xhp xht xmh xmm xmo xmp xmr xmt xmx xom xoo xop xor xot xox xpm xpo xpp xpt xrt xrx xtm xtp xtr xtx xxo xxp xxx