One man on a lift and another man on the roof of the building watching .
Men standing on a sidewalk in a busy street .
One man on a lift and another man on the roof of the building watching.
Men standing on a sidewalk in a busy street.
Either the men are on or approaching the roof on a lift, or they are both standing on a sidewalk. They cannot take up two spaces at one time.
Either the men are on or approaching the roof on a lift , or they are both standing on a sidewalk . They can not take up two spaces at one time .