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_27827 ( "No. in series" real, "No. in season" real, "Title" text, "Directed by" text, "Written by" text, "Original air date" text, "Production code" text )

### Question ###
What are the number in series of the pieces directed by Win Phelps and which number in season is 11?

### Accurate SQL ###

SELECT "No. in series" FROM table_27827 WHERE "Directed by" = 'Win Phelps' AND "No. in season" = '11'