A group of people are walking in the fog toward a creepy house.
A group of people were on a haunted tour.
Fog might make any house look creepy to a person or group of people, but that doesn't imply that they are on a haunted tour.
exists e1 s1 x1 x2 x3 x4.(n_fog(x3) & in(e1,x3) & toward(x3,x4) & n_house(x4) & a_creepy(s1) & Theme(s1,x4) & Actor(e1,x1) & v_walk(e1) & of(x1,x2) & n_people(x2) & n_group(x1))
exists p1 x1 x2.(exists s1 x3.(on(x1,x3) & n_tour(x3) & a_haunted(s1) & Theme(s1,x3)) & of(x1,x2) & n_people(x2) & n_group(x1))