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.

Input: Consider Input: In marine sediments methane is produced when sulfates are low .

Output: In marine sediments the biological production of methane , also termed methanogenesis , is generally confined to where sulfates are depleted , below the top layers .


Input: Consider Input: Autolycus ' surviving works include a book on spheres ( called " On the Moving Sphere " ) and another on the rising and setting of celestial bodies .

Output: Autolycus ' surviving works include a book on spheres entitled " On the Moving Sphere " ( Περι ̀ κινουμε ́ νης σφαι ́ ρας ) and another " On Risings and Settings " ( Περι ̀ ε ̓ πιτολω ͂ ν και ̀ δυ ́ σεων ) of celestial bodies .


Input: Consider Input: The 2000 UEFA European Football Championship , or Euro 2000 , was the 11th UEFA European Football Championship .


Output: The 2000 UEFA European Football Championship , also known as Euro 2000 , was the 11th UEFA European Championship , which is held every four years and organised by UEFA , association football 's governing body in Europe .