A janitor about to mop in a train station.
The janitor is a female that is about to clean the train station
There is no evidence the janitor is a female or that they are about to clean the train station just because they are about to mop. They might just be cleaning up a spill and not cleaning the train station.
exists p1 s1 x1 x2.(a_topic(x1) & Topic(s1,p1) & Actor(s1,x2) & a_about(s1) & exists e1 x3 x4.(in(e1,x3) & n_station(x3) & of(x3,x4) & n_train(x4) & Actor(e1,x2) & v_mop(e1)) & (x1 = x2) & n_janitor(x1))
exists p1 x1 x4 x5.(n_station(x4) & of(x4,x5) & n_train(x5) & n_janitor(x1) & exists p2 s1 x2 x3.((x1 = x2) & Topic(s1,p2) & Actor(s1,x3) & a_about(s1) & exists e1.(Theme(e1,x4) & Actor(e1,x3) & v_clean(e1)) & (x2 = x3) & n_female(x2)))