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_2668401_12 (incumbent VARCHAR, candidates VARCHAR)
### Question:
Name the incumbent for candidates Joseph Hiester (dr) 83.2% Roswell Wells (f) 16.8%.
### Answer:
SELECT incumbent FROM table_2668401_12 WHERE candidates = "Joseph Hiester (DR) 83.2% Roswell Wells (F) 16.8%"