CREATE TABLE table_name_78 (surface VARCHAR2, tournament VARCHAR2, score VARCHAR2)

On what surface did a score of 4 6 6 3 6 4 occur at the Tournament of Lahore?
SELECT surface FROM table_name_78 WHERE tournament = "lahore" AND score = "4–6 6–3 6–4"
SELECT "surface" FROM "table_name_78" WHERE "4–6 6–3 6–4" = "score" AND "lahore" = "tournament"