Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_2 (extra VARCHAR, tournament VARCHAR, result VARCHAR)
### Question:
What extra has world championships as the tournament, and 1st as the result?
### Answer:
SELECT extra FROM table_name_2 WHERE tournament = "world championships" AND result = "1st"