A child looks at a robot.
The robot can talk.
Not all robots can talk.
exists e1 x1 x2.(at(e1,x2) & n_robot(x2) & Actor(e1,x1) & v_look(e1) & n_child(x1))
exists e1 p1 x1.(n_robot(x1) & exists e2.(Actor(e2,x1) & v_talk(e2)) & Topic(e1,p1) & Actor(e1,x1) & v_can(e1))