What is the tonnage of the Eldena?
CREATE TABLE table_name_15 (tonnage__grt_ VARCHAR, name VARCHAR)
SELECT tonnage__grt_ FROM table_name_15 WHERE name = "eldena"
### Context: CREATE TABLE table_name_15 (tonnage__grt_ VARCHAR, name VARCHAR) ### Question: What is the tonnage of the Eldena? ### Answer: SELECT tonnage__grt_ FROM table_name_15 WHERE name = "eldena"