These people are demonstrating for their leader.
The people demonstrating are male.
People can refer to male and female.
exists e1 x1 x2.(n_leader(x2) & of(x2,x1) & n_thing(x1) & n_people(x1) & for(e1,x2) & Actor(e1,x1) & v_demonstrate(e1))
exists e1 s1 x1 x2.(n_people(x1) & Theme(s1,x1) & a_male(s1) & Actor(e1,x2) & v_demonstrate(e1) & (x1 = x2))