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_76 (prohibition_ticket VARCHAR, greenback_ticket VARCHAR)

### Question ###
Who was on the prohibition ticket when the Greenback ticket had Thomas Armstrong?

### Accurate SQL ###

SELECT prohibition_ticket FROM table_name_76 WHERE greenback_ticket = "thomas armstrong"