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.

[Q]: Kornberg made the discovery that signals to the RNA are made by a complex of proteins that they called " mediator " .
[A]: Using this system , Kornberg made the major discovery that transmission of gene regulatory signals to the RNA polymerase machinery is accomplished by an additional protein complex that they dubbed " Mediator " .


[Q]: A blood feud is a feud with a cycle of retaliatory violence , with the relatives of someone who has been killed or otherwise wronged or dishonored .
[A]: A blood feud is a feud with a cycle of retaliatory violence , with the relatives or associates of someone who has been killed or otherwise wronged or dishonored seeking vengeance by killing or otherwise physically punishing the culprits or their relatives .


[Q]: The main tengwar letters are placed into four vertical series ( " te ́ mar " ) and six horizontal rows ( " tyeller " ) .
[A]:
These principal letters are divided into four series ( " te ́ mar " ) that correspond to the main places of articulation and into six grades ( " tyeller " ) that correspond to the main manners of articulation .


