Ruggers are competing in a fierce game of rugby
Ruggers wearing rugby shirts are competing in a fierce game of rugby.
competing  doesn't always mean wearing rugby shirts
exists e1 s1 x1 x2 x3.(in(e1,x2) & of(x2,x3) & n_rugby(x3) & n_game(x2) & a_fierce(s1) & Theme(s1,x2) & Actor(e1,x1) & v_compete(e1) & n_rugger(x1))
exists e1 e2 s1 s2 x1 x2 x3 x4 x5.(in(e2,x4) & of(x4,x5) & n_rugby(x5) & n_game(x4) & a_fierce(s2) & Theme(s2,x4) & Actor(e2,x1) & v_compete(e2) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_shirt(x3) & a_rugby(s1) & Theme(s1,x3) & (x1 = x2) & n_rugger(x1))