A white man in a tank top looking at his fingers.
A man in a tank top.
Both involve a man in a tank top; the first sentence just has more detail.
exists e1 s1 x1 x2 x3 x4 x5.(a_topic(x1) & in(x1,x2) & at(e1,x5) & n_finger(x5) & of(x5,x1) & n_male(x1) & Actor(e1,x4) & v_look(e1) & (x2 = x4) & n_top(x2) & of(x2,x3) & n_tank(x3) & n_man(x1) & a_white(s1) & Theme(s1,x1))
exists x1 x2 x3.(a_topic(x1) & in(x1,x2) & n_top(x2) & of(x2,x3) & n_tank(x3) & n_man(x1))