A family is hiking across a rocky landscape.
A family is taking a vacation in the mountains.
Just because a family is hiking across a rocky landscape it does not mean they are taking a vacation in the mountains.
exists e1 s1 x1 x2.(across(e1,x2) & n_landscape(x2) & a_rocky(s1) & Theme(s1,x2) & Actor(e1,x1) & v_hike(e1) & n_family(x1))
exists e1 x1 x2 x3.(n_mountain(x3) & in(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_take(e1) & n_vacation(x2) & n_family(x1))