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_name_64 ( series_leader VARCHAR, date VARCHAR )

### Question ###
What is the Series leader with a Date that is may 31?

### Accurate SQL ###

SELECT series_leader FROM table_name_64 WHERE date = "may 31"