Drag and Drop Scoring/Grading

I have created an image that requires a label on the top and bottom of the page. For example: I want the word "private" to appear on the top and bottom of the page. I have made 2 Text items with the word "Private". If they drag it to location 1 its correct OR if they drag it to location 4, its correct. So I marked drop zone 1 and 4 as correct. However when the item is graded, it tells me that 1-1 is correct, but I didn't answer 1-2. I thought the system would read it as" If you drop the word 'private' in location 1 OR location 4, it will be correct". It appears that the answer is "you must drop this item in location 1 AND location 4 to get full marks. Where are I going wrong and how do I make the answer to work in either location.

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I have attached a pic for clarity.

thanks