Hiking group of people in the mountains.
The bus is full of students.
If they are in the mountains they are not in the bus.
exists e1 x1 x2 x3.(n_mountain(x3) & a_topic(x1) & of(x1,x2) & in(x2,x3) & n_people(x2) & n_group(x1) & Actor(e1,x1) & v_hike(e1))
exists s1 x1 x2.(n_bus(x1) & of(s1,x2) & n_student(x2) & Theme(s1,x1) & a_full(s1))