A person wearing a blue helmet is hooking a pulley onto a thick steel wire.
A person is at a train station.
The fact a person is hooking a pulley onto a thick steel wire does not necessarily mean it is at a train station.
exists e2 e1 s1 s2 x1 x2 x3 x4 x5 x6.(onto(e2,x5) & n_wire(x5) & of(x5,x6) & n_steel(x6) & a_thick(s2) & Theme(s2,x5) & Theme(e2,x4) & Actor(e2,x1) & v_hook(e2) & n_pulley(x4) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_helmet(x3) & a_blue(s1) & Theme(s1,x3) & (x1 = x2) & n_person(x1))
exists p1 x1.(exists x2 x3.(at(x1,x2) & n_station(x2) & of(x2,x3) & n_train(x3)) & n_person(x1))