Sentence 1: In the 1980s , the NUM successfully campaigned for the end of the job reservation system , a system that ensured that the best-paid jobs were given to whites .
Sentence 2: NUM campaigned successfully in the 1980s for the end of the job reservation system , a system which ensured that the best-allocated jobs were paid to whites .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?