Knowledge: To practice golf, any golf practice range is a perfect place to go. On the other hand, YMCA is a wonderful gym to work out and stay fit.

Conversation:
Hey do you go to the gym?
I do not, did you know that "fitness" meant being able to do the day's stuff without being excessively tired? This was before the Industrial Revolution.
That's interesting! What does it mean nowadays?
Now, it refers similar to working out and to stay fit.
Oh okay. So where is a perfect place I should go to to workout and to stay fit?

Response: Yes, YMCA is a perfect place to work out.