##Instruction:
Database: tracking_software_problems
Total Tables: 6
Total Columns: 28

Table Schemas:

tracking_software_problems contains tables such as Problem_Category_Codes, Problem_Log, Problem_Status_Codes, Product, Staff, Problems.
Table Problem_Category_Codes has columns such as problem_category_code, problem_category_description.
problem_category_code is the primary key.
Table Problem_Log has columns such as problem_log_id, assigned_to_staff_id, problem_id, problem_category_code, problem_status_code, log_entry_date, log_entry_description, log_entry_fix, other_log_details.
problem_log_id is the primary key.
Table Problem_Status_Codes has columns such as problem_status_code, problem_status_description.
problem_status_code is the primary key.
Table Product has columns such as product_id, product_name, product_details.
product_id is the primary key.
Table Staff has columns such as staff_id, staff_first_name, staff_last_name, other_staff_details.
staff_id is the primary key.
Table Problems has columns such as problem_id, product_id, closure_authorised_by_staff_id, reported_by_staff_id, date_problem_reported, date_problem_closed, problem_description, other_problem_details.
problem_id is the primary key.
The problem_status_code of Problem_Log is the foreign key of problem_status_code of Problem_Status_Codes.
The problem_id of Problem_Log is the foreign key of problem_id of Problems.
The assigned_to_staff_id of Problem_Log is the foreign key of staff_id of Staff.
The problem_category_code of Problem_Log is the foreign key of problem_category_code of Problem_Category_Codes.
The reported_by_staff_id of Problems is the foreign key of staff_id of Staff.
The product_id of Problems is the foreign key of product_id of Product.
The closure_authorised_by_staff_id of Problems is the foreign key of staff_id of Staff.

##Role Access Policy (Column-Level):
Role: QualityAnalyst
Accessible Columns: Problem_Category_Codes: ALL COLUMNS; Problem_Log: problem_log_id, problem_id, problem_category_code, problem_status_code, log_entry_date, log_entry_description, log_entry_fix; Problem_Status_Codes: ALL COLUMNS; Product: product_id, product_name, product_details; Problems: problem_id, product_id, date_problem_reported, date_problem_closed, problem_description

Based on the above schema and your role's column-level access policy, generate a SQL query to answer the question. If your role does not have access to the required columns, respond with: "Sorry, I cannot answer."


Question: For which product was there a problem reported by Christop Berge, with closure authorised by Ashley Medhurst? Return the product ids.
Answer: Sorry, I cannot answer.
Permission: denied (Missing column permissions: staff: staff_first_name, staff_id, staff_last_name; problems: closure_authorised_by_staff_id, reported_by_staff_id)
Gold SQL: SELECT product_id FROM problems AS T1 JOIN staff AS T2 ON T1.reported_by_staff_id = T2.staff_id WHERE T2.staff_first_name = "Christop" AND T2.staff_last_name = "Berge" INTERSECT SELECT product_id FROM problems AS T1 JOIN staff AS T2 ON T1.closure_authorised_by_staff_id = T2.staff_id WHERE T2.staff_first_name = "Ashley" AND T2.staff_last_name = "Medhurst"