Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: 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 )

### Question ###
What was the fastest lap in a race where Phil Hill had the Pole position and was won by Wolfgang von Trips?

### Accurate SQL ###

SELECT "Fastest lap" FROM table_11143 WHERE "Pole position" = 'phil hill' AND "Winning driver" = 'wolfgang von trips'