CREATE TABLE table_11742 ("Entrant" TEXT, "Constructor" TEXT, "Chassis" TEXT, "Engine \\u2020" TEXT, "Tyre" TEXT, "Driver" TEXT, "Rounds" TEXT)

What's the chassis for alexander wurz's playlife fb02 engine?
SELECT "Chassis" FROM table_11742 WHERE "Engine \u2020" = 'playlife fb02' AND "Driver" = 'alexander wurz'
SELECT "Chassis" FROM "table_11742" WHERE "Driver" = 'alexander wurz' AND "Engine \u2020" = 'playlife fb02'