how many company were founded in the same year as st anthony's boys school ?
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_St_Anthony's_Boys_School,_Cleveland_Town dbo_foundingYear var_year sep_dot dbr_St_Anthony's_Boys_School,_Cleveland_Town a dbo_Companybrack_close