A man with a blue bull mask in a crowd of people.
A man is a part of a crowd.
A man is in a crowd of people.
exists s1 x1 x2 x3 x4 x5.(a_topic(x1) & with(x1,x2) & in(x2,x4) & of(x4,x5) & n_people(x5) & n_crowd(x4) & n_mask(x2) & of(x2,x3) & n_bull(x3) & a_blue(s1) & Theme(s1,x2) & n_man(x1))
exists p1 x1.(exists x2 x3.((x1 = x2) & of(x2,x3) & n_crowd(x3) & n_part(x2)) & n_man(x1))