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_19242_5 (_km² VARCHAR, of_which_currently_forests INTEGER, land_formation VARCHAR)
### Question:
When middle prut valley is the land formation what is the highest of which currently forests, km² ?
### Answer:
SELECT MAX(of_which_currently_forests), _km² FROM table_19242_5 WHERE land_formation = "Middle Prut Valley"