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.
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Question: Tuzla is the third largest city of Bosnia and Herzegovina .

Answer: Tuzla ( -RSB- ) is the third-largest city of Bosnia and Herzegovina and the administrative center of Tuzla Canton of the Federation of Bosnia and Herzegovina .


Question: A literary element is a part of books and stories of narrative fiction .

Answer: A literary element , or narrative element , or element of literature is a constituent of all works of narrative fiction — a necessary feature of verbal storytelling that can be found in any written or spoken narrative .


Question: Oil refining is the name for a number of processes from chemical engineering , which transform crude oil into useful products such as different fuel oils , Liquefied petroleum gas , gasoline , kerosene or diesel oil .

Answer:
Petroleum refining processes are the chemical engineering processes and other facilities used in petroleum refineries ( also referred to as oil refineries ) to transform crude oil into useful products such as liquefied petroleum gas ( LPG ) , gasoline or petrol , kerosene , jet fuel , diesel oil and fuel oils .


