Through windows into a building , we see on one floor people eating at a nice restaurant , while on the floor below we see a working man looking out at us from where he kneels between shelves and boxes .
Chances are about even that a building has men and women working and eating
It is certain that a building has men and women working and eating
Chances are about even that a building has men and women working and eating
A building has men and women working and eating