In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.
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Question: The Greek Orthodox Church of Antioch , also known as the Antiochian Orthodox Church and legally as the Greek Orthodox Patriarchate of Antioch and All the East , is an autocephalous Greek Orthodox Church within the wider communion of Eastern Orthodox Christianity .

Answer: The Greek Orthodox Church of Antioch is a group of Christians .

Question: In most cases , the municipalities are the smallest administrative subdivisions of Belgium , but in municipalities with more than 100,000 inhabitants , on the initiative of the local council , sub-municipal administrative entities with elected councils may be created .

Answer: Usually , municipalities are the smallest subdivisions of Belgium , but in municipalities with more than 100,000 people living there , they get divided into districts .

Question: The Convention for the Unification of certain rules relating to international carriage by air , commonly known as the Warsaw Convention , is an international convention which regulates liability for international carriage of persons , luggage , or goods performed by aircraft for reward .

Answer:
The Warsaw Convention is an international convention which regulates liability for international carriage of persons , luggage or goods performed by aircraft for reward .