Triple language XML/RDF

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Joined: Sep 2010

I want to know more about XML/RDF, so I'm trying to learn XML/RDF from a book. I'm struggling with triple language. I'm supposed to write this sentence using at least 3 triples without blank nodes, and 3 triples using at least 1 blank node.
Sentence: "Book YZ can be found in section ABCDE, which is at
location 123AB, location code FGH."

triples:

section ABCDE

location 123AB

location code FGH

If they're wrong, could you correct these? ALso I have no idea what blank nodes are or how to use them.