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:
Magnetism in normal bar magnets and electromagnets does not come from magnetic monopoles .
answer:
Magnetism in bar magnets and electromagnets is not caused by magnetic monopoles , and indeed , there is no known experimental or observational evidence that magnetic monopoles exist .


question:
A head teacher ( also called a school principal , or headmaster / headmistress ) is the teacher in charge of a school .
answer:
A head teacher , headmaster , headmistress , head , chancellor , principal or school director ( sometimes another title is used ) is the staff member of a school with the greatest responsibility for the management of the school .


question:
Metropolitan Manila , commonly known as Metro Manila , is the National Capital Region ( NCR ) of the Philippines .
answer:

Metropolitan Manila ( often shortened to as Metro Manila ; ) , officially the National Capital Region ( NCR ) , is the seat of government and one of the three defined metropolitan areas of the Philippines .