A woman scuba diving with a large sea turtle.
A veterinarian scuba dives to help a sea turtle.
Just because a woman scuba diving with a large sea turtle doesn't mean she dives to help a sea turtle.
exists e1 s1 x1 x2 x3 x4 x5.(a_topic(x1) & with(e1,x4) & n_turtle(x4) & of(x4,x5) & n_sea(x5) & a_large(s1) & Theme(s1,x4) & Actor(e1,x3) & v_dive(e1) & (x1 = x3) & n_scuba(x1) & of(x1,x2) & n_woman(x2))
exists p1 s1 x1 x2.(a_topic(x1) & Topic(x1,p1) & exists e1 x3 x4.(Theme(e1,x3) & Actor(e1,x1) & v_help(e1) & n_turtle(x3) & of(x3,x4) & n_sea(x4)) & n_dive(x1) & of(x1,x2) & n_scuba(x2) & a_veterinarian(s1) & Theme(s1,x1))