Two people are riding bikes beside train tracks .
It is likely that two people ride their bikes next to the train tracks while checking to make sure it is safe to cross
It is likely that two people ride their bikes next to the train tracks while checking to make sure it is safe to cross
It is improbable that two people ride their bikes next to the train tracks while checking to make sure it is safe to cross
Two people ride their bikes next to the train tracks while checking to make sure it is safe to cross