TASK DEFINITION: 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.
PROBLEM: In tort law , an invitee is a member of the public who has been invited to do business with the owner of a property .

SOLUTION: In the law of torts , an invitee is a person who is invited to land by the possessor of the land as a member of the public or one who enters the land of another for the purpose of business dealings with the possessor of the land .

PROBLEM: This license allows anyone to reuse the material as long as the original author is named , but authors may choose the CC-BY-NC-3.0 license ( which prohibits commercial reuse ) or traditional " all rights reserved " copyright protections instead .

SOLUTION: Contributions were licensed by default under the Creative Commons CC-BY-3.0 license ( which allowed anyone to reuse the material as long as the original author was named ) , but authors were also able to choose the CC-BY-NC-3.0 license ( which prohibits commercial reuse ) or traditional copyright protection instead .

PROBLEM: Marginal utility is a concept from economics that describes the change in utility from consuming more or less of a good or service .

SOLUTION:
In economics , utility is the satisfaction or benefit derived by consuming a product ; thus the marginal utility of a goods or service is the change in the utility from an increase in the consumption of that good or service .