user: From the passage provided, extract the year Apache Software Foundation was incorporated on.

assistant: Apache Software Foundation was incorporated on March 25, 1999

user: Why Kolkata is famous

assistant: Because of it's famous food and culture
1. Kolkata biriyani
2, Victoria
3. Rasogolla

user: What are the four main types of debt securities?

assistant: Common types of debt securities include commercial paper, corporate bonds, government bonds, municipal bonds, and treasury bills/bonds.