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_87 (line VARCHAR, operator VARCHAR, destination VARCHAR)
### Question:
Which line has an operator of the London Overground and ends at the Crystal Palace?
### Answer:
SELECT line FROM table_name_87 WHERE operator = "london overground" AND destination = "crystal palace"