-th a-a a-t aaa aah aao aap aar aat aax aha ahh aho ahp ahr aht ahx aoa aoh aoo aop aor aot aox ap- apa aph apo app apr apt apx ar- ara arh aro arp arr art arx at- ata ath ato atp atr att atx ax- axa axh axo axp axr axt axx haa hah hao hap har hat hax hha hhh hho hhp hhr hht hoa hoh hoo hop hor hot hox hpa hph hpo hpp hpr hpt hr- hra hrh hro hrp hrr hrt hta hth hto htp htr htt htx oaa oah oao oap oar oat oax oha ohh oho ohp ohr oht oo- ooa ooh ooo oop oor oot oox op- opa oph opo opp opr opt opx or- ora orh oro orp orr ort orx ot- ota oth oto otp otr ott ox- oxa oxo oxt oxx p-p paa pah pao pap par pat pax pha pho php phr pht phx poa poh poo pop por pot pox ppa pph ppo ppp ppr ppt ppx pra prh pro prp prr prt prx pt- pta pth pto ptp ptr ptt ptx pxr pxt ra- raa rah rao rap rar rat rax rh- rha rhh rho rhp rhr rht roa roh roo rop ror rot rox rpa rph rpo rpp rpr rpt rpx rra rrh rrp rrr rrt rta rto rtp rtr rtt rtx rxp rxr t-x taa tah tao tap tar tat tax th- tha thh tho thp thr tht thx to- toa toh too top tor tot tox tpa tph tpo tpp tpr tpt tpx tra trh tro trp trr trt trx tta tth tto ttp ttr ttt ttx txt xaa xap xar xat xhp xht xoa xoo xop xor xot xox xpa xpo xpp xpt xrt xrx xtp xtr xtx xxo xxp xxx