Several people are standing under a tarp ; two ladies are facing each other and one has a backpack on with her hands in her jeans pockets while the other one has a cigarette in her hand .
It is certain that the thunderstorm forced all of the people to use the tarp for shelter .
It is unlikely that the thunderstorm forced all of the people to use the tarp for shelter .
It is certain that the thunderstorm forced all of the people to use the tarp for shelter .
The thunderstorm forced all of the people to use the tarp for shelter .