In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.

[EX Q]: More importantly , the discovery of celestial bodies orbiting something other than the Earth dealt a blow to the then-accepted Ptolemaic world system .
[EX A]: More importantly , the discovery of celestial bodies orbiting something other than Earth dealt a blow to the then-accepted Ptolemaic world system , which held that Earth was at the center of the universe and all other celestial bodies revolved around it .

[EX Q]: In practice , the role of head of state of Australia is divided between two people , the Queen of Australia and the Governor-General of Australia .
[EX A]: In practice , the role of head of state of Australia is divided between two people , the Queen of Australia and the Governor-General of Australia , who is appointed by the Queen on the advice of the Prime Minister of Australia .

[EX Q]: A Landmark decision , or Landmark court decision , establishes new precedents that establish a significant new legal principle or concept .
[EX A]:
Landmark court decisions , in present-day common law legal systems , establish precedents that determine a significant new legal principle or concept , or otherwise substantially affect the interpretation of existing law .