Two girls walking along a log in a field outside.
The girls went swimming at the lake.
The girls can not be walking and swimming simultaneously. The girls can not be in a field and in a lake simultaneously.
exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & in(e1,x4) & n_outside(x4) & of(x4,x5) & n_field(x5) & along(e1,x3) & n_log(x3) & Actor(e1,x2) & v_walk(e1) & (x1 = x2) & n_girl(x1) & card_eq_2(x1))
exists e1 x1 x2 x3.(n_lake(x3) & n_girl(x1) & at(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_go(e1) & n_swimming(x2))