CREATE TABLE table_78391 ("Outcome" CLOB, "Date" CLOB, "Tournament" CLOB, "Surface" CLOB, "Opponent" CLOB, "Score" CLOB)

What kind of surface was the tournament at Pune played on?
SELECT "Surface" FROM table_78391 WHERE "Tournament" = 'pune'
SELECT "Surface" FROM "table_78391" WHERE "Tournament" = 'pune'