@Chapter
   @Title { Predefined symbols }
   @Tag { symbols }
@Begin
@BeginSections
@Include { pre_begi }
@Include { pre_conc }
@Include { pre_font }
@Include { pre_brea }
@Include { pre_spac }
@Include { pre_yuni }
@Include { pre_colo }
@Include { pre_outl }
@Include { pre_lang }
@Include { pre_oner }
@Include { pre_wide }
@Include { pre_hshi }
@Include { pre_hexp }
@Include { pre_hcon }
@Include { pre_hlim }
@Include { pre_hadj }
@Include { pre_hsca }
@Include { pre_cove }
@Include { pre_span }
@Include { pre_scal }
@Include { pre_rota }
@Include { pre_back }
@Include { pre_kshr }
@Include { pre_rump }
@Include { pre_inse }
@Include { pre_oneo }
@Include { pre_next }
@Include { pre_case }
@Include { pre_mome }
@Include { pre_null }
@Include { pre_gall }
@Include { pre_head }
@Include { pre_notr }
@Include { pre_cros }
@Include { pre_tagg }
@Include { pre_open }
@Include { pre_data }
@Include { pre_grap }
@Include { pre_plai }
@Include { pre_incg }
@Include { pre_prep }
@Include { pre_incl }
@Include { pre_bend }
@Include { pre_verb }
@Include { pre_unde }
@Include { pre_page }
@EndSections
@End @Chapter