A man protests in support of a cause.
A man supports a cause.
"supports a cause" is a simpler version of "protests in support of a cause".
exists x1 x2 x3 x4.(a_topic(x1) & in(x1,x3) & of(x3,x4) & n_cause(x4) & n_support(x3) & n_protest(x1) & of(x1,x2) & n_man(x2))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_support(e1) & n_cause(x2) & n_man(x1))