Construction worker in a hard hat and yellow neon vest , working on stairs .
Chances are about even that a construction working in a yellow neon vest and hard hat works on apartment building stairs .
Chances are about even that a construction working in a yellow neon vest and hard hat works on apartment building stairs .
It is highly unlikely that a construction working in a yellow neon vest and hard hat works on apartment building stairs .
A construction working in a yellow neon vest and hard hat works on apartment building stairs .