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# Problems - Create rules in the database to solve each of the following : a. In which year was a specific movie released?

```Problems - Create rules in the database to solve each of the following:

a. In which year was a specific movie released?
year_released(Movie, Year):-
b. Find all movies released in a given year.
movies_released_in_year(Movies, Year):-
c. Find all movies released AFTER a given year.
movies_released_before_year(Movies, Year):-
d. Find all movies released BEFORE a given year.
movies_released_after_year(Movies, Year):-
e. Find all actors and actresses who also directed a movie, the movie, and the role they played.
star_who_directed(Star, Movie, Role):-
f. Find all co-stars of an actor.
co_star(Star, Costar).

*/

/* DATABASE

movie(M, Y) <- movie M came out in year Y
director(M, D) <- movie M was directed by director D
actor(M, A, R) <- actor A played role R in movie M
actress(M, A, R) <- actress A played role R in movie M
```

in prologue

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