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_27413 ( "Country" text, "Skip" text, "W" real, "L" real, "PF" real, "PA" real, "Ends Won" real, "Ends Lost" real, "Blank Ends" real, "Stolen Ends" real, "Shot %" real )

### Question ###
Name the least ends won for pf being 78

### Accurate SQL ###

SELECT MIN("Ends Won") FROM table_27413 WHERE "PF" = '78'