-th h-i hhh hhi hho hhp hhr hht hih hii hio hip hir hit hix hoh hoi hoo hop hor hot hox hph hpi hpo hpp hpr hpt hr- hrh hri hro hrp hrr hrt hth hti hto htp htr htt htx ihh ihi iho ihp ihr iht iih iii iio iip iir iit iix io- ioh ioi ioo iop ior iot ipi ipo ipp ipr ipt ipx ir- iri iro irp irr irt irx ith iti ito itp itt itx ixi o-i ohh ohi oho ohp ohr oht oii oio oip oir oit oo- ooh ooi ooo oop oor oot oox op- oph opi opo opp opr opt opx or- orh ori oro orp orr ort orx ot- oth oti oto otp otr ott ox- oxi oxo oxt oxx p-p phi pho php phr pht phx pih pii pio pip pir pit pix poh poi poo pop por pot pox pph ppi ppo ppp ppr ppt ppx prh pri pro prp prr prt prx pt- pth pti pto ptp ptr ptt ptx pxr pxt rh- rhh rhi rho rhp rhr rht rih rii rio rip rir rit rix roh roi roo rop ror rot rox rph rpi rpo rpp rpr rpt rpx rrh rri rrp rrr rrt rti rto rtp rtr rtt rtx rxp rxr t-x th- thh thi tho thp thr tht thx tih tii tio tip tir tit tix to- toh toi too top tor tot tox tph tpi tpo tpp tpr tpt tpx trh tri tro trp trr trt trx tth tti tto ttp ttr ttt ttx txi txt xhp xht xii xio xit xix xoi xoo xop xor xot xox xpo xpp xpt xrt xrx xti xtp xtr xtx xxi xxo xxp xxx