Positive and negative sets

Okay, so imagine a bunch of toys on the floor in your room. Let's say that some of the toys are your favorites and some of them you don't really care about. We can put the toys that you like into a special box called the "positive set". This is like a treasure box full of all the things that make you happy.

Now, let's say there are some toys that you don't like or maybe even make you sad. We can put those toys into a different box called the "negative set". This box is like a trash can for all the things you don't want or don't make you feel good.

In real life, positive and negative sets can have different meanings depending on what we are talking about. For example, if we were talking about numbers, positive numbers would be the ones that are greater than zero and negative numbers would be the ones that are less than zero. But the idea is still the same: we are organizing things into different categories based on whether they are good or bad, helpful or harmful, or some other kind of opposite.