What is the life expectancy of a horse?
user
I’m not sure.  If you’re just looking for the average, I’m guessing about 30 years.
assistant
care to expand upon that?
user
I have a hunch this is an odd request.  The life expectancy of a horse is influenced by a lot of factors like genetics, diet, exercise, and environment.  Can you give me a little more information about what you want to know?
assistant
What is the life expectancy of a horse?
user
I’m not sure.  If you’re just looking for the average, I’m guessing about 30 years.
assistant
care to expand upon that?
user
Not much.
assistant
What is the life expectancy of a horse?