how many company were founded in the same year as canadian academy ?
select attr_open count attr_open distinct var_uri attr_close as var_c attr_close where brack_open var_uri rdf_type dbo_Company sep_dot var_uri dbo_foundingYear var_year sep_dot dbr_Canadian_Academy dbo_foundingYear var_year sep_dot dbr_Canadian_Academy a dbo_Companybrack_close