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_71984 ( "Church name" text, "Location" text, "Rebuilt" text, "Date of demolition" real, "Subsuming parish" text )

### Question ###
What is the location that has a date of demolition of 1940 and has a church named Christ Church Greyfriars?

### Accurate SQL ###

SELECT "Location" FROM table_71984 WHERE "Date of demolition" = '1940' AND "Church name" = 'christ church greyfriars'