SELECT DISTINCT T2.director FROM Rating AS T1 JOIN Movie AS T2 ON T1.mID  =  T2.mID JOIN Reviewer AS T3 ON T1.rID  =  T3.rID WHERE T3.name  =  'Sarah Martinez'
Find the names of all directors whose movies are rated by Sarah Martinez.
create table Movie(
	mID int primary key, 
	title text, 
	year int, 
	director text
);
create table Reviewer(
	rID int primary key, 
	name text);
create table Rating(
	rID int, 
	mID int, 
	stars int, 
	ratingDate date,
	FOREIGN KEY (mID) references Movie(mID),
	FOREIGN KEY (rID) references Reviewer(rID)
);
INSERT into Movie values(101, 'Gone with the Wind', 1939, 'Victor Fleming');
INSERT into Reviewer values(201, 'Sarah Martinez');
INSERT into Rating values(201, 101, 2, '2011-01-22');
INSERT INTO Movie VALUES [(101, 'Gone with the Wind', 1939, 'Victor Fleming'), (102, 'Star Wars', 1977, 'George Lucas')]
INSERT INTO Reviewer VALUES [(201, 'Sarah Martinez'), (202, 'Daniel Lewis')]
INSERT INTO Rating VALUES [(201, 101, 2, '2011-01-22'), (201, 101, 4, '2011-01-27')]