Several people walking along a curved walkway inside of a building with various advertisements .
There is a very good chance that people have come to an indoor sporting event where many sponsors have put up ads .
There is a very good chance that people have come to an indoor sporting event where many sponsors have put up ads .
It is improbable that people have come to an indoor sporting event where many sponsors have put up ads .
People have come to an indoor sporting event where many sponsors have put up ads .