Table: us_open_1987
Columns: place
player
country
score
to_par

Question: What score did John Mahaffey have?
SQL: SELECT "score" FROM us_open_1987 WHERE "player" = 'john mahaffey'

Question: What was the nationality of the player with a score of 72-72-67=211?
SQL: SELECT "country" FROM us_open_1987 WHERE "score" = '72-72-67=211'

Question: What place did Keith Clearwater get?
SQL: SELECT "place" FROM us_open_1987 WHERE "player" = 'keith clearwater'