Transcription: So what we've done is we've declared an attribute of type entity that points to another external entity. What it does is it acts just like a pointer to another file. So we're pointing to, in this case, external1.xml which contained valid markup. And as you saw, if that markup wasn't valid, we got an error. But you notice that the contents of external1.xml was not displayed in our browser. We're going to talk about that a little later, so don't worry about that. We're going to address that. But what happens if we're dealing with a document that we don't want parsed? What if we're dealing with a ...
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