A large crowd of people are gathered in the street.
A crowd of people protesting.
A gathering of people doesn't imply protesting.
exists e1 s1 x1 x2 x3.(n_street(x3) & in(e1,x3) & Theme(e1,x1) & v_gather(e1) & of(x1,x2) & n_people(x2) & n_crowd(x1) & a_large(s1) & Theme(s1,x1))
exists e1 x1 x2 x3.(a_topic(x1) & of(x1,x2) & Actor(e1,x3) & v_protest(e1) & (x2 = x3) & n_people(x2) & n_crowd(x1))