One man wearing a black t-shirt is helping another man, who is wearing a blue shirt, tie his necktie.
No one is helping someone.
The statement of no one is helping contradicting the man helping another man in first sentence.
exists e3 e2 e4 e1 s1 s2 x1 x2 x3 x4 x5 x6 x7 x8.(Theme(e4,x8) & Actor(e4,x1) & v_tie(e4) & n_necktie(x8) & of(x8,x3) & n_male(x3) & Theme(e3,x7) & Actor(e3,x6) & v_wear(e3) & n_shirt(x7) & a_blue(s2) & Theme(s2,x7) & (x1 = x6) & Theme(e2,x3) & Actor(e2,x2) & v_wear(e2) & Theme(e1,x5) & Actor(e1,x4) & v_help(e1) & n_man(x5) & -(x5 = x1) & n_man(x1) & n_man(x1) & (x3 = x4) & n_t-shirt(x3) & a_black(s1) & Theme(s1,x3) & (x1 = x2) & card_eq_1(x1))
-exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_help(e1) & n_person(x2) & n_one(x1))