Knowledge: Professional golfers played in many countries include Japan, Afghanistan and they can retire at the age of 35. On the other hand, soldiers can leave with full pension at age 40, if started at age 18.

Conversation:
Hi - My husband has a career as soldier. He is currently stationed in Japan.
How long has he been there? Was he in Afghanistan too?
He's been in Japan for two years and Afghanistan for 4 years. Do you know when soldiers can retire?

Response: Hmm, they can retire at age 40, if they started to be a solider at age 18.