What is a reasonable portion when copying a published edition of a literary, dramatic or musical work
43.—(1)  In the following cases, a copy of a literary, dramatic or musical work contained in a published edition of the work is taken to contain only a reasonable portion of the work for the purposes of this Act:
(a)where the edition has 10 or more pages —
(i)only 10% or less of the number of pages in the edition are copied in total; or
(ii)if the edition is divided into chapters — the pages copied are all from the same chapter;
(b)where the edition is an electronic edition and is not divided into pages —
(i)only 10% or less of the total number of bytes in the edition are copied in total;
(ii)only 10% or less of the total number of words in that edition are copied in total;
(iii)if it is not practicable to use the total number of words as a measure — only 10% or less of the contents of that edition are copied in total; or
(iv)if the edition is divided into chapters — the parts copied are all from the same chapter.
(2)  To avoid doubt, this section applies in relation to an adaptation of a literary, dramatic or musical work as it applies in relation to a literary, dramatic or musical work.
(3)  This section does not limit the meaning of “reasonable portion” in this Act.