To buy real estate for selling later

There was a bubble economy about 20 years ago in Japan.
At that time, Mitsubishi Real Estate Company, the number one real estate company in Japan, bought the Rockefeller Center buildings in New York for 120 billion yen.
When Mitsubishi bought them, there were one third vacant rooms for rent.
After the break down of the bubble economy, Mitsubishi decided to sell them with big loss.
The price was 70 billion yen.