You will be given a definition of a task first, then some input of the task.
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.

In the start of " The Bachman Books , " King said using the " nom de plume " Bachman was to see if his success was due to talent or luck .
Output:
In his introduction to " The Bachman Books , " King states that adopting the nom de plume Bachman was also an attempt to make sense out of his career and try to answer the question of whether his success was due to talent or luck .