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_47647 ( "Date" text, "Visitor" text, "Score" text, "Home" text, "Decision" text, "Attendance" real, "Record" text, "Points" real )

### Question ###
What is Visitor, when Home is Philadelphia, and when Date is November 18?

### Accurate SQL ###

SELECT "Visitor" FROM table_47647 WHERE "Home" = 'philadelphia' AND "Date" = 'november 18'