A man with glasses is reading a book while sitting in front of a piano.
A man is playing Dance Dance Revolution.
reading is contradictory to playing
exists e2 e1 x1 x2 x3 x4 x5.(while(e1,e2) & in(e2,x4) & of(x4,x5) & n_piano(x5) & n_front(x4) & Actor(e2,x1) & v_sit(e2) & Theme(e1,x3) & Actor(e1,x1) & v_read(e1) & n_book(x3) & with(x1,x2) & n_glass(x2) & n_man(x1))
exists e1 x1 x2 x3 x4.(ne_org_revolution(x2) & (x2 = x4) & ne_org_dance(x4) & (x2 = x3) & ne_org_dance(x3) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_man(x1))