how something can be someone's property?

well there are a lot off ways something can be someones propoerty. First we can say that something belongs to someone because he or she has some kind of power over the thing, for example if I can decide about anything over the object it is mine because nobody can decide over something that is not of them. I think that this is the most important fact to own something. Another way we can explain something is someones property is talking about laws or in this case a paper or some kind of prove that shows that that thing is yours, an example can be a house, when you buy a house the last owners give you a lot off papers that say that that house is yours, with this example we can show the vality of the last explenation, now that we have the papers that say that the house is ours we can do alll the things we whant with it. This explanations i have give you most of the times can be aplied but in some cases they are not, for example if your parents buy you something and they give it to you " IT IS YOURS " but really it isn't because you dont have complete power over it, your parents have it because they have power over you. So we can say that something can be someones property if he or she has copmplete power over it and noone else is envolved.