$1)$ Use the scheme instance to answer the followings: $($Marks: $5*20)(10$ for query, $10$ for result$)$

Note: You should show the resulting relation!

$1.$ List all the staff that has salary $>9000$ and

$2.$ Show all flats that owned by Carol Farrel

$3.$ List all cities where there is either a branch or a property for rent $5.$ List all cities where there is a branch office but no property for rent

$5.$ List names and comments of all clients who have viewed a property for rent