Older man wearing dark blue clothing sweeping the ground and a person wearing a red coat and carrying a green bag entering the building.
An older man is outdoors
That  an older man sweeping the ground while a person entering the building implies that the older is in the outdoors.
AN OLD MAN IN DARK BLUE SHIRT SWEEPING AT THE OUTDOOR
If he is sweeping the ground, then he must be outdoors. Otherwise he would be sweeping the floor.