A man on a zip line being propelled through the water.
A man is scuba diving
A man on a zip line is not also scuba diving.
exists e1 x1 x2 x3 x4 x5.(n_water(x5) & a_topic(x1) & on(x1,x2) & through(e1,x5) & Theme(e1,x4) & v_propel(e1) & (x2 = x4) & n_line(x2) & of(x2,x3) & n_zip(x3) & n_man(x1))
exists p1 x1.(exists s1 x2.((x1 = x2) & n_diving(x2) & a_scuba(s1) & Theme(s1,x2)) & n_man(x1))