how many company were founded in the same year as university of chicago laboratory schools ?
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_University_of_Chicago_Laboratory_Schools dbo_foundingYear var_year sep_dot dbr_University_of_Chicago_Laboratory_Schools a dbo_Companybrack_close