You will be given a definition of a task first, then an example. Follow the example to solve a new instance 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.

The Inheritance Cycle is a series of fantasy books written by Christopher Paolini.
Solution: The Inheritance Cycle is a tetralogy of young adult high fantasy novels written by American author Christopher Paolini.
Why? The output sentence elaborates on the input sentence without changing its general meaning e.g. "tetralogy of young adult high fantasy novels".

New input: Dog fighting is a blood sport that involves several dogs fighting at one time ; sometimes many dogs are involved .
Solution:
Dog fighting is a type of blood sport generally defined as two or more game dogs against one another in a ring or a pit for the entertainment of the spectators or the gratification of the dogfighters , who are sometimes referred to as dogmen .