Noliving 0 Junior Poster in Training

Select order_num, order_date, customer_name, description
From orders,part,customer
Union
Select order_num, order_date, customer_name, description
From orders,part,customer
Where customer_name = 'Johnson's Department Store' or description = 'Gas Range';

I'm getting this error and from my understanding it looks like it should be fine:

SQL command not properly ended