0_Apprentice
I'm in the Navy.  Have you ever been in the military? 
1_Wizard
No I haven't but I know that the navy or maritime force is waterborne military watercrafts.
0_Apprentice
What are your favorite ships in the Navy? 
1_Wizard
There are so many to choose from like submarines, surface ships, amphibious ships, and seaborne aviaton.
0_Apprentice
Pick one that you like the most. 
1_Wizard
Okay, i like the submarine most. It's a watercraft that operates underwater.
0_Apprentice
Have you ever visited a submarine? 
1_Wizard
I have when I was on vacation once. The USS "Triton". It was the first vessel to completely circle the Earth.
0_Apprentice
Was it a nuclear submarine? 
1_Wizard
Yes, it was a US Navy radar picket nuclear sub.