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_27435931_1 (elevation_ft INTEGER, year VARCHAR)
### Question:
what was the lowest elevation in april 2006?
### Answer:
SELECT MIN(elevation_ft) FROM table_27435931_1 WHERE year = "April 2006"