You can not assume all of the children are by the building just because there is a group of children in the doorway. There may be more children some of whom are sitting in the shade with the adults.


Consider the statement "Three women or girls stand and sit in the shade of a tree while a group of small children sits inside the doorway of a building.". Based on this "All the children are by the building while the adults are by a tree." a true statement? Yes, no, or I don't know?