CREATE TABLE table_name_16 (time VARCHAR, jockey VARCHAR, trainer VARCHAR)

What is Time, when Jockey is John Velazquez, and when Trainer is Todd A. Pletcher?
SELECT time FROM table_name_16 WHERE jockey = "john velazquez" AND trainer = "todd a. pletcher"
SELECT "time" FROM "table_name_16" WHERE "jockey" = "john velazquez" AND "todd a. pletcher" = "trainer"