"in 15 years" . . "Dallas vs. Denver, XII (2 opponent)" . "Super Bowl Sunday" . "XII (12)" . . "1977 (XII)" . "Super Bowl XII" . "Super Bowl victory" . "Dallas vs. Denver, XII" . "Denver vs. Dallas, XII" . . . . "Denver vs. Dallas, (25\u20138), XII" . . "Dallas (12) vs. Denver (8), XII" . "vs. Dallas, XII" . "Super Bowl Champion XII" . "Super Bowl XII" . "The next year" . "1978 Super Bowl" . "Super Bowl champions" . "Won Super Bowl" . "Denver vs. Dallas (35\u201325), XII" . "Denver (1) vs. Dallas (8), XII" . "the previous Super Bowl" . . "Super Bowl" . . "'''XII'''" . "Super Bowl" . "1977" . . . . . "Dallas vs. Denver, XII (4 own, 4 opponent)" . . . "1978" . "Denver" . "Dallas vs. Denver, XII (2 own)" . . "XII" . "the previous year" .