Working on laying cement blocks is hard work.
Men are dancing
Working and dancing is not the same thing
exists e1 p1 x1 x2 x3 x4.(ne_nam_working(x1) & exists s1 x5.((x1 = x5) & n_work(x5) & a_hard(s1) & Theme(s1,x5)) & Theme(e1,x3) & Actor(e1,x2) & v_lay(e1) & n_block(x3) & of(x3,x4) & n_cement(x4) & (x1 = x2))
exists e1 x1.(Actor(e1,x1) & v_dance(e1) & n_man(x1))