CREATE TABLE table_39169 ("Date" CLOB, "Tournament" CLOB, "Surface" CLOB, "Opponent" CLOB, "Score" CLOB)

What is the surface for the tournament of manta, ecuador?
SELECT "Surface" FROM table_39169 WHERE "Tournament" = 'manta, ecuador'
SELECT "Surface" FROM "table_39169" WHERE "Tournament" = 'manta, ecuador'