A boy holds up a strange plant.
A boy eats a sandwich on the school bus.
The boy is holding a strange plant, he is not eating a sandwich.
exists e1 s1 s2 x1 x2.(a_up(s2) & Manner(e1,s2) & Theme(e1,x2) & Actor(e1,x1) & v_hold(e1) & n_plant(x2) & a_strange(s1) & Theme(s1,x2) & n_boy(x1))
exists e1 x1 x2 x3 x4.(n_bus(x3) & of(x3,x4) & n_school(x4) & Theme(e1,x2) & Actor(e1,x1) & v_eat(e1) & on(x2,x3) & n_sandwich(x2) & n_boy(x1))