Four men stand holding picket signs referencing stances on immigration.
The men are sitting.
The men cannot be sitting and standing at the same time.
exists e1 p1 x1.(exists e2 e3 x2 x3 x4 x5 x6.(Theme(e3,x2) & Actor(e3,x1) & v_hold(e3) & on(e2,x6) & n_immigration(x6) & Theme(e2,x5) & Actor(e2,x4) & v_reference(e2) & n_stance(x5) & (x2 = x4) & n_sign(x2) & of(x2,x3) & n_picket(x3)) & Topic(e1,p1) & Actor(e1,x1) & v_stand(e1) & n_man(x1) & card_eq_4(x1))
exists e1 x1.(n_man(x1) & Actor(e1,x1) & v_sit(e1))