premise: A middle-aged man wearing a white shirt, gloves and pants with what appears to be some type of device around his neck that might control the crane that is going to either hoist up or let down some piping. hypothesis: A construction worker laying pipe for a new drainage system.
neutral: A man wearing gloves and wearing some device which may possibly control a crane doesn't necessarily have to be a construction worker. Pipes can be laid for many reasons and not just for a new drainage system.