There is a picket line outside of the cheesecake factory and the leader of the picket is wearing a mask.
Protest leader hiding their face.
A leader of a picket can also be called a protest leader. If someone is wearing a mask, then they are hiding their face.
exists e1 p1 x1 x2 x3 x4 x8 x9.(n_picket(x3) & n_leader(x2) & n_factory(x8) & of(x8,x9) & n_cheesecake(x9) & Theme(e1,x4) & Actor(e1,x2) & v_wear(e1) & n_mask(x4) & of(x2,x3) & exists x5 x6 x7.((x1 = x5) & of(x7,x8) & outside(x5,x7) & n_thing(x7) & n_line(x5) & of(x5,x6) & n_picket(x6)))
exists e1 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x4) & Actor(e1,x3) & v_hide(e1) & n_face(x4) & of(x4,x1) & n_thing(x1) & (x1 = x3) & n_leader(x1) & (x1 = x2) & ne_nam_protest(x2))