Question: when was the last time dallas cowboys won the super bowl
[{'answer': '1995'}, {'provenance': [{'wikipedia_id': '11281401', 'title': '1995 Dallas Cowboys season', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ["The 1995 Dallas Cowboys season was the franchise's 36th season in the National Football League and was the second year under head coach Barry Switzer and final of the three Super Bowl titles they would win during 1992 to 1995. Dallas would be the first team to ever win three Super Bowls in a span of four seasons (would be later matched by the New England Patriots from the 2001 to 2004 seasons).", "The 1995 Dallas Cowboys season was the franchise's 36th season in the National Football League and was the second year under head coach Barry Switzer and final of the three Super Bowl titles they would win during 1992 to 1995. Dallas would be the first team to ever win three Super Bowls in a span of four seasons (would be later matched by the New England Patriots from the 2001 to 2004 seasons)"]}}]}]