The conversation between human and AI assistant.
[|Human|] Who won the 30th NBA Championship?
[|AI|] The 30th NBA Championship, which took place in the 1976-1977 season, was won by the Portland Trail Blazers. They defeated the Philadelphia 76ers 4-2 in the Finals to win the first and only championship in franchise history to date.
[|Human|] 
Who won the 30th NBA Championship?