CREATE TABLE table_66434 ("Rank" FLOAT, "Lane" FLOAT, "Name" TEXT, "Nationality" TEXT, "Time" TEXT)

What is the time of Yuliya Yefimova?
SELECT "Time" FROM table_66434 WHERE "Name" = 'yuliya yefimova'
SELECT "Time" FROM "table_66434" WHERE "Name" = 'yuliya yefimova'