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_20079931_4 (round VARCHAR, circuit_location VARCHAR, pole_position VARCHAR)
### Question:
How many rounds were there in Karlskoga Motorstadion with Roger Eriksson at the pole position?
### Answer:
SELECT COUNT(round) FROM table_20079931_4 WHERE circuit_location = "Karlskoga Motorstadion" AND pole_position = "Roger Eriksson"