The gang watches some TV.
The gang are staring at a screen.
Watches some TV  implies they are staring at a screen.
exists e1 x1 x2.(n_gang(x1) & Theme(e1,x2) & Actor(e1,x1) & v_watch(e1) & n_tv(x2))
exists e1 x1 x2.(n_gang(x1) & at(e1,x2) & n_screen(x2) & Actor(e1,x1) & v_stare(e1))