Duplicate or not

Good afternoon,
There is a park in my home town that stretches over 2 blocks. Each section has 2 sets of concrete benches planted in the ground with chess boards built into them (so 4 sets of chess benches in total) and each set is in its own location in the park, relatively far apart from each other.
Are these still clasified as duplicates or can each individual set be a POI? Keep in mind they are not in close proximity like a playgrounds structures.
Thanks.
Comments
They can both be POIs, if they are far enough away from each other. You might get problems when there are no POIs between the two POIs, it could get rated as duplicate by fast clickers.
Thanks! Unfortunately there's only trees and grass between them so they get fast clicked as duplicates even though I've added their respective coordinates in the supporting motivation. I'll just submit them again :)
Is it easily seen in satellite view or street view? Maybe try to get the trees in the supporting photo and describe the differences in surrounding from one poi to your submission