What is the next dialog turn? CONVERSATION:Conversation:
  Person 1) What were the main types of gas-checks used?;
  Person 2) Automatic gas-checks were used with studless ammunition in both Woolwich and polygroove rifled guns.;
  Person 1) Are there any other interesting aspects about this article?;
  Person 2) They were otherwise known as “Rotating Gas-Checks” or “EOC Gas-Checks”.;
  Person 1) What did the different names mean?;
  Person 2) They were called “automatic” because they could be loaded into the barrel separately from the projectile, and automatically became firmly attached to the projectile on firing.;
  Person 1) Why were they called rotating gas checks?;
  Person 2) They were called rotating gas-checks because they were able to rotate the projectile, enabling the use of studless projectiles.;
  Person 1) And what about EOC gas checks?;
  Person 2) 
They were called EOC gas-checks, because they were developed by the Armstrong company which owned EOC.