CREATE TABLE table_11143 ("Race" TEXT, "Circuit" TEXT, "Date" TEXT, "Pole position" TEXT, "Fastest lap" TEXT, "Winning driver" TEXT, "Constructor" TEXT, "Tyre" TEXT, "Report" TEXT)

What was the fastest lap in a race where Phil Hill had the Pole position and was won by Wolfgang von Trips?
SELECT "Fastest lap" FROM table_11143 WHERE "Pole position" = 'phil hill' AND "Winning driver" = 'wolfgang von trips'
SELECT "Fastest lap" FROM "table_11143" WHERE "Pole position" = 'phil hill' AND "Winning driver" = 'wolfgang von trips'