I'm thinking about going to Tokyo for a vacation. Know any good places to go there?
Oh there's a lot of things to do in Tokyo, the metropolitan prefecture!
Dang, I don't even know what that word means! What are some cool things to do? I really want to go eat sushi there.
You might try sashimi, too.  It's a related Japanese dish that has raw fish and optional serving of rice.
Ooooh, I love sashimi! What other Japanese dishes are popular in Tokyo?
Ceviche, which is raw fish cured in citrus juices is very popular!
Ceviche? I thought that was a Peruvian food! Sushi in citrus juice sounds great right now. 
It is Peruvian, but got influences from Europe and Asia.  Go vigure!