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 Input:
The Oxford English Dictionary ( or OED ) is a dictionary .

Ex Output:
The Oxford English Dictionary ( OED ) is the principal historical dictionary of the English language , published by Oxford University Press ( OUP ) .


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

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


Ex Input:
Foolscap is paper cut to the size of 8 + 1/2 xx , sometimes 13 xx .

Ex Output:

Foolscap folio ( commonly contracted to foolscap or folio and in short FC ) is paper cut to the size of 8 + 1/2 xx ( for " normal " writing paper , 13 xx ) .