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_1341598_39 (party VARCHAR, incumbent VARCHAR)
### Question:
To which party does Robert W. Edgar belong?
### Answer:
SELECT party FROM table_1341598_39 WHERE incumbent = "Robert W. Edgar"