Man with golden pigtails attracts attention in the street.
The hooded man walks down the street unnoticed.
Attracting attention is the opposite of going unnoticed, and one cannot do both at the same time.
exists e1 s1 x1 x2 x3 x4.(n_street(x4) & in(e1,x4) & Theme(e1,x3) & Actor(e1,x1) & v_attract(e1) & n_attention(x3) & with(x1,x2) & n_pigtail(x2) & a_golden(s1) & Theme(s1,x2) & n_man(x1))
exists e2 e1 s1 s2 x1 x2 x3.(n_street(x2) & n_man(x1) & a_hooded(s1) & Theme(s1,x1) & a_down(s2) & Manner(e2,s2) & Theme(e2,x2) & Actor(e2,x1) & v_walk(e2) & Actor(e1,x3) & v_unnotice(e1) & (x2 = x3))