QUESTION: Fix punctuation: The system is a simple steering system for delivery of ice on request
ANS: The system is a simple steering system for delivery of ice on request.

QUESTION: Fix punctuation: There he was a postdoctoral worker at Chicago where he collaborated with Bliss and then at Harvard
ANS: There he was a postdoctoral worker at Chicago, where he collaborated with Bliss , and then at Harvard.

QUESTION: Fix punctuation: The change which will be applied to stable builds of Firefox in the near future removes information about the installed version of the extension from the list of addons installed in the browser
ANS: The change, which will be applied to stable builds of Firefox in the near future, removes information about the installed version of the extension from the list of add-ons installed in the browser.

QUESTION: Fix punctuation: And the result of that experiment
ANS:
And the result of that experiment?