TASK DEFINITION: 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.
PROBLEM: For example , milk sugar ( lactose ) is made from glucose and galactose whereas cane sugar ( sucrose ) is made from glucose and fructose .

SOLUTION: 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 .

PROBLEM: Center ( C ) is a position in American football and Canadian football .

SOLUTION: Center ( C ) is a position in American football and Canadian football ( in the latter the position is spelled centre , following Commonwealth spelling conventions ) .

PROBLEM: Professor Schrock 's work is continuing with metathesis as well as projects such as dinitrogen fixation and single molecule catalysts which make ammonia from dinitrogen , similar to nitrogenase enzymes in biology .

SOLUTION:
Schrock 's work is ongoing with goals of furthering the understanding of metathesis selectivity , developing new catalyst architectures , as well as projects outside of metathesis , such as elucidating the mechanism of dinitrogen fixation and developing single molecule catalysts which form ammonia from dinitrogen , mimicking the activity of nitrogenase enzymes in biology .