Protesters are demonstrating against violence in Iran.
They are angry.
Protesters are not necessarily angry.
exists e1 x1 x2 x3.(ne_geo_iran(x3) & against(e1,x2) & in(x2,x3) & n_violence(x2) & Actor(e1,x1) & v_demonstrate(e1) & n_protester(x1))
exists s1 x1.(n_thing(x1) & Theme(s1,x1) & a_angry(s1))