A person being blindfolded by a girl and a boy.
Two children blindfold ther father for a big surprise.
Just because its a girl and a boy does not mean the person being blindfolded is their father. Just because the person is being blindfolded does not mean it is for a surprise.
exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & Actor(e1,x3) & subset_of(x5,x3) & n_boy(x5) & subset_of(x4,x3) & n_girl(x4) & Theme(e1,x2) & v_blindfold(e1) & (x1 = x2) & n_person(x1))
exists e1 s1 s2 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_blindfold(e1) & for(x2,x3) & n_surprise(x3) & a_big(s2) & Theme(s2,x3) & n_father(x2) & r_more(s1) & a_ther(s1) & Theme(s1,x2) & n_child(x1) & card_eq_2(x1))