sentence1: color x 0 x 1 , x 1 x 2 , x 3 x 4 , x 4 x 0 with 3 , 2 , 1 , 4 , respectively , and color x 2 x 3 from with respect to 2 and u φ .
sentence2: color x 0 x 1 , x 1 x 2 , x 2 x 3 , x 4 x 0 with 4 , 5 , 1 , 1 , respectively , and color x 3 x 4 from with respect to 1 and u φ .