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_84 (soap_opera VARCHAR, duration VARCHAR, actor VARCHAR)
### Question:
What is the soap opera that has a duration of 13 years, with marina giulia cavalli as the actor?
### Answer:
SELECT soap_opera FROM table_name_84 WHERE duration = "13 years" AND actor = "marina giulia cavalli"