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_56 (sign_in_bicker VARCHAR, location VARCHAR)

### Question ###
Which Sign-in/Bicker is at of wash50 on washington rd?

### Accurate SQL ###

SELECT sign_in_bicker FROM table_name_56 WHERE location = "wash50 on washington rd"