It is wrong to think that it is a prison when photographed from a satellite.
The fence is very high, so high that the bird cannot fly up the wall to find its mother bird. It is as ugly as almost all the school walls on the land that is said to be 9.6 Million square kilometers. The walls have been stupidly made to resemble a straw hat that has been used for many years and is stained. Dogs will avoid it when they see it. Even the most delicate and show-off flowers cannot survive for half an hour next to it, and they are willing to wither. I blame myself for being unlucky and growing up in the wrong place.