Two people pose for a picure holding a card that says "know what this is?"
Two people pose for a wedding shoot.
There are plenty of other reasons the people might be holding the card. There is no mention of any wedding shoot.
exists e1 e3 e2 p1 x1 x2 x3 x4 x5.(for(e1,x2) & Theme(e3,x4) & Actor(e3,x3) & v_hold(e3) & exists e4 p2 x6.(n_thing(x6) & Theme(e4,x6) & Actor(e4,x5) & v_know(e4) & (x1 = x6)) & n_thing(x1) & Topic(e2,p1) & Actor(e2,x5) & v_say(e2) & (x4 = x5) & n_card(x4) & (x2 = x3) & n_picure(x2) & Actor(e1,x1) & v_pose(e1) & n_people(x1) & card_eq_2(x1))
exists e1 x1 x2 x3.(for(e1,x2) & n_shoot(x2) & of(x2,x3) & n_wedding(x3) & Actor(e1,x1) & v_pose(e1) & n_people(x1) & card_eq_2(x1))