The man sits on a sofa under the bridge and litter is all around him .
We believe that there is a man sitting on a sofa under a bridge because he is homeless .
We believe that there is a man sitting on a sofa under a bridge because he is homeless .
It is unlikely that there is a man sitting on a sofa under a bridge because he is homeless .
There is a man sitting on a sofa under a bridge because he is homeless .