$4\mathrm{.}5$ LAB $-$ Implement supertype and subtype entities $($Sakila$)$

Similar entities have many common attributes and relationships. Similar entities are often converted into subtypes of a supertype entity, as illustrated in this lab.

In the Sakila database, the customer and staff tables have several common columns. Convert these tables into subtypes of person. Specifically, write CREATE TABLE statements for person, customer, and staff that implement this ER diagram:

i cannot get the belongs $to$ and works $at$ relationships $to$ work $as$ foreign keys ANd the subtype $to$ have IsA relationship $to$ supertype.