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: Substance abuse , or drug abuse , happens when a person uses a drug over and over again , in ways that hurt their health .
Example Output: Substance abuse , also known as drug abuse , is a patterned use of a drug in which the user consumes the substance in amounts or with methods which are harmful to themselves or others , and is a form of substance-related disorder .

Example Input: It may be better explained by the motto adopted by the 18th-century antiquary , Sir Richard Colt Hoare , " We speak from facts not theory " .
Example Output: The essence of antiquarianism is a focus on the empirical evidence of the past , and is perhaps best encapsulated in the motto adopted by the 18th-century antiquary Sir Richard Colt Hoare , " We speak from facts , not theory . "

Example Input: A crown group is a group of living species and their ancestors back to the most recent common ancestor .
Example Output:
In phylogenetics , the crown group or crown assemblage of a collection of species consists of the living representatives of the collection together with their ancestors back to their most recent common ancestor as well as all of that ancestor 's descendants .

