Ancient Grecian Government
Ancient Greece was the beginning of democracy. In 507 BC Cleisthenes introduced a new form of government and principle which was "rule by the people" and leaders were elected.
This system was divided into three groups: writers of the laws, a council of representatives from each tribe, and courts where citizens argued cases before randomly-selected jurors.
Ancient Roman Government
Roman government went through many changes during its existence including city state, kingdom, republic, and imperial periods. Its main principle was that of "republic" in which leaders were elected and only for a limited time.
Like the Greeks, the Republican Roman government had three separate branches of government but they operated a little bit differently: legislative (makes laws) with the Senate and assemblies, executive (enforces laws) led by two consuls, and judicial (interprets laws) with eight judges.
"If they are used ocassionally, antiacids don't produce any risk. But used daily, they can cause a "rebound" reaction: heartburn pain can actually worsen and some people experience diarrhea or constipation from certain antiacids."
I believe the correct term to fill in the blank would be rumination. Trey is engaging in a practice of rumination. It is a deep or focused thinking of one that has undergone distress. It is analogous with depression and anxiety. When one is ruminating, he keeps thinking of a certain thought repetitively without thinking of any solutions to that problem.
Explanation:
The author means that even though Japan has a larger trading system (I assume that is what it's referring to) it does not exactly fit the same terms as a usual trading system would.