-ic -th c-- ccc cch cci cco ccp cct ccx ch- chc chh chi cho chp cht chx ci- cic cih cii cio cip cit cix co- coc coh coi coo cop cot cox cpc cph cpi cpo cpp cpt cpx ctc cth cti cto ctp ctt ctx cxc cxh cxi cxo cxp cxt cxx h-i hcc hch hci hco hcp hct hhc hhh hhi hho hhp hht hic hih hii hio hip hit hix hoc hoh hoi hoo hop hot hox hpc hph hpi hpo hpp hpt htc hth hti hto htp htt htx hxc icc ich ici ico icp ict ihc ihh ihi iho ihp iht iic iih iii iio iip iit iix io- ioc ioh ioi ioo iop iot ipc ipi ipo ipp ipt ipx itc ith iti ito itp itt itx ixc ixi o-i oc- occ och oci oco ocp oct ocx ohc ohh ohi oho ohp oht oic oii oio oip oit oo- ooc ooh ooi ooo oop oot oox op- opc oph opi opo opp opt opx ot- otc oth oti oto otp ott ox- oxc oxi oxo oxt oxx p-p pcc pch pci pco pcp pct pcx phc phi pho php pht phx pic pih pii pio pip pit pix poc poh poi poo pop pot pox ppc pph ppi ppo ppp ppt ppx pt- ptc pth pti pto ptp ptt ptx pxc pxt t-x tcc tch tci tco tcp tct tcx th- thc thh thi tho thp tht thx tic tih tii tio tip tit tix to- toc toh toi too top tot tox tpc tph tpi tpo tpp tpt tpx ttc tth tti tto ttp ttt ttx txi txt xch xci xcp xcx xhp xht xic xii xio xit xix xoc xoi xoo xop xot xox xpc xpo xpp xpt xtc xti xtp xtx xxi xxo xxp xxx