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]: A head teacher ( also called a school principal , or headmaster / headmistress ) is the teacher in charge of a school .
[EX A]: 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 .

[EX Q]: Any object that symbolically resembles a penis may also be referred to as a phallus , or as being " phallic " ( as in ' phallic symbol ' ) .
[EX A]: Any object that symbolically — or , more precisely , iconically — resembles a penis may also be referred to as a phallus ; however , such objects are more often referred to as being phallic ( as in " phallic symbol " ) .

[EX Q]: Masonry arch bridges use fill material ( typically compacted rubble ) above the arch in order to increase this dead-weight on the bridge .
[EX A]:
Masonry arch bridges use a quantity of fill material ( typically compacted rubble ) above the arch in order to increase this dead-weight on the bridge and prevent tension from occurring in the arch ring as loads move across the bridge .