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_83 (grid INTEGER, time_retired VARCHAR, laps VARCHAR)
### Question:
What is the average Grid that has a Time/Retired of +2 laps, and under 51 laps?
### Answer:
SELECT AVG(grid) FROM table_name_83 WHERE time_retired = "+2 laps" AND laps < 51