## It_Support_Specialists

id | name | experience
--- | --- | ---
1 | John Doe | 3
2 | Jane Smith | 2
3 | Michael Johnson | 10
4 | Emily Davis | 6
5 | David Brown | 8

## Systems

system_id | system_name | is_active
--- | --- | ---
1 | Windows | 1
2 | Linux | 0
3 | MacOS | 1
4 | Android | 1
5 | iOS | 1

## It_Support_Specialists_Systems

it_specialist_id | system_id
--- | ---
(→ It_Support_Specialists.id) | (→ Systems.system_id)
1 | 1
2 | 1
3 | 1
4 | 1
5 | 1
5 | 4

## Companies

company_id | company_name | location
--- | --- | ---
1 | Company A | New York
2 | Company B | San Francisco
3 | Company C | Chicago
4 | Company D | Los Angeles
5 | Company E | Boston