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 Students (first_name VARCHAR, current_address_id VARCHAR, permanent_address_id VARCHAR)
### Question:
Whose permanent address is different from his or her current address? List his or her first name.
### Answer:
SELECT first_name FROM Students WHERE current_address_id <> permanent_address_id