A hiker dressed in a t-shirt and shorts rests and admires the orange and red sands surrounding him in the desert .
We doubt that a hiker is in the desert because he has the day off of work that day .
It is probable that a hiker is in the desert because he has the day off of work that day .
We doubt that a hiker is in the desert because he has the day off of work that day .
A hiker is in the desert because he has the day off of work that day .