CREATE TABLE table_name_87 (field_goals INT, touchdowns VARCHAR, player VARCHAR, points VARCHAR, extra_points VARCHAR)

When Herb Graver played, how many field goals were made when there were more than 50 points, less than 15 touchdowns, and more than 0 extra points?
SELECT AVG(field_goals) FROM table_name_87 WHERE points > 50 AND extra_points > 0 AND player = "herb graver" AND touchdowns < 15
SELECT AVG("field_goals") FROM "table_name_87" WHERE "extra_points" > 0 AND "herb graver" = "player" AND "points" > 50 AND "touchdowns" < 15