Near sets

Near Sets are like friends. Let's say you have a group of friends that you like to hang out with. This group of friends makes up a set. A Near Set is when you have a group of friends that have something in common but are not exactly the same. So, for example, you could have a group of friends that like to play video games together. That would be one set of friends. Then you could have a group of friends who also like to play video games, but they also like to play sports together. That group of friends would be a Near Set to the first group because they both like to play video games, but they are not exactly the same because they also like to play sports.