instruction:
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.
question:
For example , milk sugar ( lactose ) is made from glucose and galactose whereas cane sugar ( sucrose ) is made from glucose and fructose .
answer:
For example , milk sugar ( lactose ) is a disaccharide made by condensation of one molecule of each of the monosaccharides glucose and galactose , whereas the disaccharide sucrose in sugar cane and sugar beet , is a condensation product of glucose and fructose .


question:
The Chief Justice of Pakistan heads the Supreme Court of Pakistan .
answer:
The Chief Justice of Pakistan ( initials as CJP ) is the head of the court system of Pakistan ( the judicature branch of government ) and the chief judge of the Supreme Court of Pakistan .


question:
Then , Aristotle proved the Earth was round in around 330 BC .
answer:

Around 330 BC , Aristotle maintained on the basis of physical theory and observational evidence that the Earth was spherical , and reported an estimate of its circumference .