Page 5 the principles articulated in Colorado River Water Conserv. Dist. v. United States, 424 U.S. 800, 96 S.Ct. 1236, 47 L.Ed.2d 483 (1976) and Moses H. Cone Memorial How. v. Mercury Constr. 460 U.S. 1, 103 S.Ct. 927, 74 L.Ed.2d 765 (1983)." The six factors considered are (1) whether one of the courts has assumed