A boy holds up a strange plant.
The boy is not holding anything.
ANYTHING IS NOT A PLANT
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 x1.(n_boy(x1) & -all x2.(n_thing(x2) -> exists e1.(Theme(e1,x2) & Actor(e1,x1) & v_hold(e1))))