Two ethnic men are talking outside under a tree.
Nobody is talking.
If nobody is talking, the ethnic men wouldn't be talking.
exists e1 s1 s2 x1 x2.(under(e1,x2) & n_tree(x2) & a_outside(s2) & Manner(e1,s2) & Actor(e1,x1) & v_talk(e1) & n_man(x1) & a_ethnic(s1) & Theme(s1,x1) & card_eq_2(x1))
-exists e1 x1.(Actor(e1,x1) & v_talk(e1) & n_person(x1))