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.

Q: German idealism ( also known as post-Kantian idealism , post-Kantian philosophy , or simply post-Kantianism ) was a philosophical movement that emerged in Germany in the late 18th and early 19th centuries .

A: German idealism is a group of theories in philosophy that began in Germany in the late eighteenth and early nineteenth centuries .
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Q: On 20 January 1914 , the London International Convention on Safety of Life at Sea adopted as the " Safety Signal " the Morse code sequence " TTT " ( three " T 's " ( ) ) spaced normally as three letters so as not to be confused with the three dashes of the letter O ( ) and used for messages to ships " involving safety of navigation and being of an urgent character " .

A: On January 20 , 1914 , the London International Convention on Safety of Life at Sea adopted the Morse code signal TTT ( ) , three letter T 's ( ) spaced correctly as three letters so as not to be confused with the letter O ( - - - ) , as the " Safety Signal , " used for messages to ships " involving safety of navigation and being of an urgent character . "
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Q: Observations of a number of stars orbiting around Sagittarius A * , most notably the star S2 , have been used to provide evidence for the presence of , and produce data about , the Milky Way 's hypothesized central supermassive black hole , and have led some scientists to conclude that Sagittarius A * is beyond any reasonable doubt the site of that black hole .

A:
Observations of the star S2 in orbit around Sagittarius A * were used to show the presence of the Milky Way 's central supermassive black hole .
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