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_75 (gain INTEGER, name VARCHAR, avg_g VARCHAR)
### Question:
Can you tell me the sum of Gain that has the Name of kass, rob, and the Avg/g smaller than 1.9?
### Answer:
SELECT SUM(gain) FROM table_name_75 WHERE name = "kass, rob" AND avg_g < 1.9