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.

Example input: The Inheritance Cycle is a series of fantasy books written by Christopher Paolini.
Example output: The Inheritance Cycle is a tetralogy of young adult high fantasy novels written by American author Christopher Paolini.
Example explanation: The output sentence elaborates on the input sentence without changing its general meaning e.g. "tetralogy of young adult high fantasy novels".
Q: It was less successful than earlier albums by Madonna : it peaked at number two in the United States .
A:
Commercially , the album was less successful than Madonna 's previous albums , peaking at number 2 on the US " Billboard " 200 , becoming her first studio album not to top the chart since her debut .