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_name_71 (winner VARCHAR, location VARCHAR, tournament VARCHAR)

### Question ###
What is the name of the Winner in north carolina at the greater greensboro open?

### Accurate SQL ###

SELECT winner FROM table_name_71 WHERE location = "north carolina" AND tournament = "greater greensboro open"