Maintenance worker cleaning the side of a red and white train.
A worker cleaning the side of a giant potato.
One cannot clean the side of a train and a giant potato simultaneously.
exists e1 s1 s2 x1 x2 x3 x4.(n_side(x3) & Theme(e1,x3) & Actor(e1,x1) & v_clean(e1) & of(x3,x4) & n_train(x4) & a_white(s2) & Theme(s2,x4) & a_red(s1) & Theme(s1,x4) & n_worker(x1) & of(x1,x2) & n_maintenance(x2))
exists e1 s1 x1 x2 x3 x4.(n_side(x3) & a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_clean(e1) & of(x3,x4) & n_potato(x4) & a_giant(s1) & Theme(s1,x4) & (x1 = x2) & n_worker(x1))