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_2668393_18 (candidates VARCHAR, incumbent VARCHAR)
### Question:
How many times was the incumbent john dawson redistricted from the 15th district?
### Answer:
SELECT COUNT(candidates) FROM table_2668393_18 WHERE incumbent = "John Dawson Redistricted from the 15th district"