result = if result.any? { |e| e =~ /<\/front><middle>/ } && result.any? { |e| e =~ /<\/front><middle1>/ }
                   result.reject { |e| e =~ /<\/front><middle1>/ }
                 else
                   result.map { |e| e =~ /<\/front><middle1>/ ? "</front><middle>" : e }
                 end