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_50 (sign VARCHAR, modern_title_of_house VARCHAR)

### Question ###
Which sign has a modern house title of House of Partnerships?

### Accurate SQL ###

SELECT sign FROM table_name_50 WHERE modern_title_of_house = "house of partnerships"