I'd like to make sure my understanding about the relative clause. I want to make sure if my understanding about the relative clause in the non-restrictive and the restrictive use is right. I wrote it below.. The beer that made Milwaukee famous has made a loser out of me. It means.. →❶that "the" refer forward to the relative pronoun :that. that "the" doese't mean that that beer has been already mentioned. →❷that "the" has the sense that it's only one:Any other beer didn't make Milwaukee famous but that beer did. The beer , which made Milwaukee famous has made a loser out of me. It means →❶that "the" beer refers back:that beer has been already mentioned. →❷We don't know if just the beer made Milwaukee famous or any other beer also has.it's the possiblity that any other beer also has made Milwaukee famous, while the sentence1 says any other beer hasn't.In this term, two sentences are completely different ,in meaning. Thank you so much.