premise: An older man with curly white hair sits on a red bench, intently looking at a screen. hypothesis: A man is playing a mobile game on his mobile device in the park.
neutral: The screen the man is looking at could be on any type of device, there is no way to imply that it is on a mobile device.  The man could be sitting anywhere, there is no indication that he is in the park.  The fact that the man is intently looking at a screen does not imply that he is playing a mobile game.  He could be looking at the screen for any reason.