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_name_77 (lane INTEGER, heat VARCHAR, name VARCHAR)
### Question:
How many lanes have 2 as the heat, and susanna kallur as the name?
### Answer:
SELECT SUM(lane) FROM table_name_77 WHERE heat = 2 AND name = "susanna kallur"