Several tables are set up with produce on them.
The tables are empty
The tables cannot be empty if they have produce on them.
exists e1 s1 s2 x1 x2.(with(e1,x2) & on(x2,x1) & n_thing(x1) & n_produce(x2) & a_up(s2) & Manner(e1,s2) & Theme(e1,x1) & v_set(e1) & n_table(x1) & a_several(s1) & Theme(s1,x1))
exists s1 x1.(n_table(x1) & Theme(s1,x1) & a_empty(s1))