People running in a marathon in running clothes.
There are people running a marathon for charity.
Just because people are running in a marathon in running clothes does not mean that they are doing it for charity.
exists e1 e2 x1 x2 x3 x4 x5.(a_topic(x1) & in(e1,x3) & Theme(e2,x5) & Actor(e2,x4) & v_run(e2) & n_clothes(x5) & (x3 = x4) & n_marathon(x3) & Actor(e1,x2) & v_run(e1) & (x1 = x2) & n_people(x1))
exists p1 x1 e1 x2 x3 x4 x5.((x1 = x2) & Theme(e1,x4) & Actor(e1,x3) & v_run(e1) & for(x4,x5) & n_charity(x5) & n_marathon(x4) & (x2 = x3) & n_people(x2))