Three men wearing orange reflector vests and hard hats are working on a road construction project .
It is probably not the case that the three men are working diligently to complete their work on time and under budget .
It is probably not the case that the three men are working diligently to complete their work on time and under budget .
We believe that the three men are working diligently to complete their work on time and under budget .
The three men are working diligently to complete their work on time and under budget .