What is the relationship between the two persons?

W: Congratulations, Mr. Wang.
M: Thanks.
W: I hear that you do a lot of sports. Are you a professional marathoner?
M: No, I’m an amateur. But I am a sports fan and exercise every day.
W: Your performance is very good for an amateur. How hard do you have to train for a marathon?
M: I try to train for 3 hours every day.
W: How many sports do you do as pastimes?
M: Quite a few.
W: And what are they?
M: Jogging, swimming, cycling, Taiji, soccer, martial arts and some others.
W: Why do you like swimming?
M: Because it is good for the back and it is relaxing.
W: And cycling? What’s cycling good for?
M: The legs. I like it because it’s not expensive and I think it’s relaxing.
W: You also do Taiji.
M: Yes, that’s fight. Taiji is good for breathing. It’s very relaxing.
W: But jogging isn’t very relaxing, is it?
M: No, it isn’t. But it is good for losing weight and it’s very good for the heart.
W: And soccer?
M: Yes, I like soccer as a team sport. It’s fun, fast and sometimes is very exciting.
W: You also do martial arts?
M: Yes, it’s fun and exciting. I like it a lot.