Table: open_championship_1991_2
Columns: place
player
country
score
to_par
money

Question: Which Score has a Place of t5, and a Country of united states?
SQL: SELECT "score" FROM open_championship_1991_2 WHERE "place" = 't5' AND "country" = 'united states'

Question: Name The Score of Player of seve ballesteros?
SQL: SELECT "score" FROM open_championship_1991_2 WHERE "player" = 'seve ballesteros'

Question: Which Country has a Place of 2?
SQL: SELECT "country" FROM open_championship_1991_2 WHERE "place" = '2'