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_86 ( tournament VARCHAR, opponent VARCHAR, round VARCHAR, surface VARCHAR )

### Question ###
Name the tournament for semifinal hard surface for opponent of pam casale

### Accurate SQL ###

SELECT tournament FROM table_name_86 WHERE round = "semifinal" AND surface = "hard" AND opponent = "pam casale"