Several African children looking toward the blackboard in school, while two look back toward the camera.
the children are at home sleeping
The African children can not be at school and at home sleeping at the same time.
exists e1 s1 s2 x1 x2 x3 x4 x5 x6.(n_camera(x6) & n_blackboard(x3) & a_topic(x1) & while(e1,x5) & n_back(x5) & toward(x5,x6) & n_look(x5) & card_eq_2(x5) & in(e1,x4) & n_school(x4) & toward(e1,x3) & Actor(e1,x2) & v_look(e1) & (x1 = x2) & n_child(x1) & a_african(s2) & Theme(s2,x1) & a_several(s1) & Theme(s1,x1))
exists p1 x1.(n_child(x1) & exists x2 x3.(at(x1,x2) & n_sleeping(x2) & of(x2,x3) & n_home(x3)))