People in matching shirts are rowing boats while others are on a path with trees.
People eating their dinner
People cannot be rowing boats and eating dinner at the same time.
exists e1 p1 s1 x1 x2 x3.(exists p2 x4.(exists x5 x6.(on(x4,x5) & with(x5,x6) & n_tree(x6) & n_path(x5)) & -(x4 = x1) & n_person(x4)) & n_person(x1) & while(e1,p1) & Theme(e1,x3) & Actor(e1,x1) & v_row(e1) & n_boat(x3) & in(x1,x2) & n_shirt(x2) & a_matching(s1) & Theme(s1,x2) & n_people(x1))
exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_eat(e1) & n_dinner(x3) & of(x3,x1) & n_thing(x1) & (x1 = x2) & n_people(x1))