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

Answer: 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 .

Question: A crystal is a solid whose molecules ( or atoms ) are arranged in a repeating pattern .

Answer: A crystal or crystalline solid is a solid material whose constituents ( such as atoms , molecules , or ions ) are arranged in a highly ordered microscopic structure , forming a crystal lattice that extends in all directions .

Question: The Swedish botanist and cytogeneticist Gunnar O stergren in 1945 noted how chromosomes may spread in a population because of their own " parasitic " nature .

Answer:
The earliest clear statement of how chromosomes may spread in a population not because of their positive fitness effects on the individual organism , but because of their own " parasitic " nature came from the Swedish botanist and cytogeneticist Gunnar O stergren in 1945 .