Knowledge: The cause of death of Joseph Stalin was a cerebral hemorrhage on March 5, 1953. On the other hand, Steven Jobs passed away after a long illness of pancreatic cancer.

Conversation:
I just got my first iPhone. Do you know anything about the iPhone history?
I do!  It was June 29, 2007 when the first iPhone was released!
That is when the first one came out? I didnt think it would be that long ago. Who invented it?
I don't have the answer to that, but I know that the device has a multi-touch screen and the interface for the user is built around that
Interesting. What do you know about Steve Jobs?
Well, I know that he was an enterpreneur and also an inventor, among other things. And that he died in 2011.
That's sad. Do you know the cause of his death?

Response: Yeah. Pancreatic cancer was the cause of Steve Jobs's death.