Sentence 1: The first , or `` narrow '' , system consists of red lines of ( O III ) and other ionized elements at a redshift of z = 0.712 .
Sentence 2: The first or `` red '' system consists of narrow lines of ( O III ) and other ionized elements at redshift z = 0.712 .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?