instruction:
In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.
question:
He was the son of Walter Stewart , 6th High Steward of Scotland and of Marjorie Bruce , daughter of the Scottish king Robert the Bruce by his first wife Isabella of Mar .
answer:
He was the son of Walter Stewart and Marjorie Bruce .


question:
Paruyr Arshaviri Hayrikyan ( Traditional Armenian : Պարոյր Արշավիրի Հայրիկեան , Eastern Armenian : Պարույր Արշավիրի Հայրիկյան , born July 5 , 1949 , Yerevan ) is an Armenian politician and former Soviet dissident .
answer:
Paruyr Hayrikyan ( , born July 5 , 1949 , Yerevan ) is an Armenian political activist and a former dissident .


question:
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 " .
answer:

Kornberg made the discovery that signals to the RNA are made by a complex of proteins that they called " mediator " .