Question: What is South Africa's margin of victory?
SQL: SELECT "Margin of victory" FROM "2-1515346-2" WHERE "Country" = 'South Africa';

Question: Which Score has a Year larger than 1980, and a Margin of victory of 2 strokes, and a Country of United States, and a Player of Jim Furyk?
SQL: SELECT "Score" FROM "2-1515346-2" WHERE "Year" > 1980.0 AND "Margin of victory" = '2 strokes' AND "Country" = 'United States' AND "Player" = 'Jim Furyk';

Question: Which average Winner's share ($) has a Score of 281 (−7), and a Player of hale irwin, and a Year smaller than 1983?
SQL: SELECT AVG("Winner's share ( $ )") FROM "2-1515346-2" WHERE "Score" = '281 (−7)' AND "Player" = 'hale irwin' AND "Year" < 1983.0;