Which event had Edson Claas Vieira as an opponent?
CREATE TABLE table_name_55 (event VARCHAR, opponent VARCHAR)
SELECT event FROM table_name_55 WHERE opponent = "edson claas vieira"
### Context: CREATE TABLE table_name_55 (event VARCHAR, opponent VARCHAR) ### Question: Which event had Edson Claas Vieira as an opponent? ### Answer: SELECT event FROM table_name_55 WHERE opponent = "edson claas vieira"