QUES: The real ruler of Russia then was the terrorist Yankel Sverdloff president of the Moscow Cheka who was a Jew The Ekaterinburg Cheka was run by seven Jews one of them Yankel Yurovsky

correct the punctuation.

CORRECTED: The real ruler of Russia then was the terrorist Yankel Sverdloff, president of the Moscow Cheka, who was a Jew. The Ekaterinburg Cheka was run by seven Jews, one of them Yankel Yurovsky.
Question: The problem of squaring the circle namely constructing a square with the same area as a given circle using ruler and compasses alone had been one of the classical problems of Greek mathematics
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Answer: The problem of squaring the circle , namely constructing a square with the same area as a given circle using ruler and compasses alone, had been one of the classical problems of Greek mathematics.
XD CINEMA CAPSULENew design fashionable shape and quick return

Can you repeat this sentence, but add in punctuation?
XD CINEMA CAPSULENew design, fashionable shape and quick return!
input: This website uses Google Analytics a web analytics service provided by Google Inc Google
fixed: "This website uses Google Analytics, a web analytics service provided by Google, Inc. ("Google").
input ---- Here you can buy a handmade black Italian leather belt Coralle and order directly online
output ---- Here you can buy a handmade black Italian leather belt "Coralle" and order directly online!
Add punctuation: Tasklight with arm length 80cm colour Black light source LED with AUS plug
A:
Tasklight with arm length 80cm, colour Black, light source LED, with AUS plug