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 ship ( Name VARCHAR, Tonnage VARCHAR )

### Question ###
What is the name of the ship with the largest tonnage?

### Accurate SQL ###

SELECT Name FROM ship ORDER BY Tonnage DESC LIMIT 1