Several people are sitting on wall.
The wall is going to be used for construction soon.
Sitting on wall does not necessarily mean the wall is going to be used for construction soon.
exists e1 s1 x1 x2.(on(e1,x2) & n_wall(x2) & Actor(e1,x1) & v_sit(e1) & n_people(x1) & a_several(s1) & Theme(s1,x1))
exists e1 p1 x1.(n_wall(x1) & Topic(e1,p1) & Actor(e1,x1) & v_go(e1) & exists e2 s1 x2.(a_soon(s1) & Manner(e2,s1) & for(e2,x2) & n_construction(x2) & Theme(e2,x1) & v_use(e2)))