Example: John wrote it himself.
Method: Figure out which word is referring back to the noun and select it.
Answer: In the above sentence the word 'himself' is referring the noun 'John'. Therefore, the answer is 'himself'.

Example: He told the truth.
Method: Figure out the noun which is a quality that you can only think and feel about. Then, select it.
Answer: The noun in the above sentence is 'truth'. Therefore, the answer is 'truth'.

Example: She came after him.
Method: Find the word that relates the noun to an other word.
Answer: In the above sentence, the word 'after' tells us the relationship between 'She' and 'him'. Therefore, the answer is 'after'.

Example:

Example: You can play after you eat.
Method: Find the word that joins the independent clause with the dependent clause.
Answer: In the above sentence, the word 'after' is joining the independent clause "you can play" with the dependent clause "after you eat". Therefore, the answer is 'after'.

Example: I like Weird Al. He has a pleasant voice.

Example: This is a book.
Method: Figure out the noun that can be touched, heard, seen, smelled or tasted and select it.
Answer: The noun in the above sentence is 'book'. Therefore, the answer is 'book'.

Example: What is the shape of this cycle's wheel?