Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_51503 ( "Pick" real, "Player" text, "Nationality" text, "NBA Team" text, "School/Club Team" text )

### Question ###
What is the nationality of the player who has a pick lower than 33 and a School/Club Team of Vanderbilt?

### Accurate SQL ###

SELECT "Nationality" FROM table_51503 WHERE "Pick" < '33' AND "School/Club Team" = 'vanderbilt'