### Database Schema:
CREATE TABLE location (
	id_restaurant	INTEGER	NOT NULL	PRIMARY KEY,
	street_num	INTEGER	NULL,
	street_name	TEXT	NULL,
	city	TEXT	NULL,
	foreign key (city) references geographic (city),
	foreign key (id_restaurant) references generalinfo (id_restaurant)
);

CREATE TABLE geographic (
	city	TEXT	NOT NULL	PRIMARY KEY,
	county	TEXT	NULL,
	region	TEXT	NULL
);

CREATE TABLE generalinfo (
	id_restaurant	INTEGER	NOT NULL	PRIMARY KEY,
	label	TEXT	NULL,
	food_type	TEXT	NULL,
	city	TEXT	NULL,
	review	REAL	NULL,
	foreign key (city) references geographic (city)
);

### User's Query:
What types of food are served at the 4 top-reviewed restaurants?

### Extra Knowledge:
top-reviewed refers to review = 4; type of food refers to food_type


SELECT food_type FROM generalinfo WHERE review = ( SELECT MAX(review) FROM generalinfo ) LIMIT 4