robert: we're having a debate on advertising tomorrow and i have to take part. mr.lee: that's interesting. i should like to hear what young people think about advertising. robert: well, we wouldn't know what there was to buy if we didn't have advertisements. mr.lee: yes, that's true-up to a point. advertisements provide information that we need. if someone has produced a new article, naturally the seller wants to tell us about it. robert: yes, and advertisements tell us which product is the best. mr.lee: do they? i don't think so. every manufacturer says that his product is the