Three boys sit down and make gestures with their hands.
Three boys are at school.
Not all boys go to school.
exists e2 e1 s1 x1 x2 x3 x4.(Theme(e2,x3) & Actor(e2,x2) & v_make(e2) & with(x3,x4) & n_hand(x4) & of(x4,x1) & n_thing(x1) & n_gesture(x3) & n_boy(x2) & card_eq_3(x2) & a_down(s1) & Manner(e1,s1) & Actor(e1,x1) & v_sit(e1) & n_boy(x1) & card_eq_3(x1))
exists p1 x1.(exists x2.(at(x1,x2) & n_school(x2)) & n_boy(x1) & card_eq_3(x1))