A man and a woman teaching in front of kids who were sitting on the floor as kids raise their hands.
They are all classmates.
The group of kids may not necessarily be classmates.
exists e1 p1 s1 x1 x2 x3 x4 x5 x6 x7 x9.(n_floor(x7) & a_topic(s1) & subset_of(x2,s1) & in(x2,x4) & of(x4,x5) & exists e2 x8.(Theme(e2,x9) & Actor(e2,x8) & v_raise(e2) & n_kid(x8)) & n_hand(x9) & of(x9,x1) & n_thing(x1) & as(e1,p1) & on(e1,x7) & Actor(e1,x6) & v_sit(e1) & (x5 = x6) & n_kid(x5) & n_front(x4) & n_teaching(x2) & of(x2,x3) & n_woman(x3) & subset_of(x1,s1) & n_man(x1))
exists p1 x1.(n_thing(x1) & all x2.(n_classmate(x2) -> (x1 = x2)))