A crowd is protesting with signs.
The crowd is protesting the protest
crowd is new
exists e1 x1 x2.(with(e1,x2) & n_sign(x2) & Actor(e1,x1) & v_protest(e1) & n_crowd(x1))
exists e1 x1 x2.(n_protest(x2) & n_crowd(x1) & Theme(e1,x2) & Actor(e1,x1) & v_protest(e1))