Question: What team did the Pittsburgh Penguins lose to in the opening round to the eventual Stanley Cup?

Related documents: [0]  [DOC] The 1981-82 New York Islanders season was the tenth season in the franchise's history. It involved winning the Stanley Cup. [END] 
[1]  [DOC] The 1981–82 Pittsburgh Penguins season was their 15th in the National Hockey League. The qualified for the playoffs for the fourth straight year, but lost in the opening round to the eventual Stanley Cup champion New York Islanders three games to two. This would be the Penguins last playoff appearance until 1989. [END]  
Answer: New York Islanders
New York Islanders