A man hanging by a cable from the tower.
A man is playing a piano in the street.
Hanging implies that one is holding onto an object (i.e., a cable) with one's extremities and dangling in open air beneath that object. It is unlikely that one would be able to be hanging and playing a piano simultaneously. Also, "in the street" implies that one is on ground-level, whereas a cable from a tower would presumably be at a higher elevation.
exists x1 x2 x3 x4.(n_tower(x4) & a_topic(x1) & from(x1,x4) & by(x1,x3) & n_cable(x3) & n_hanging(x1) & of(x1,x2) & n_man(x2))
exists e1 x1 x2 x3.(n_street(x3) & in(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_piano(x2) & n_man(x1))