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_73 (series VARCHAR, visitor VARCHAR, date VARCHAR)

### Question ###
What is the series score of the game with Vancouver as the visiting team on April 16?

### Accurate SQL ###

SELECT series FROM table_name_73 WHERE visitor = "vancouver" AND date = "april 16"