Simplify the following text for a Grade 6 native English-speaking person.
Original: Diplomats from more than a dozen states â `` including the U.S. , Britain , Canada , Sweden , Australia and New Zealand â `` were denied access to the court to watch the trial and stood outside the court for its duration .
Simplified: Diplomats from more than 12 countries â `` including the U.S. , Britain , Canada , Sweden , Australia and New Zealand â `` were not allowed in the court . They could not watch the trial .