noun omission
by the word noun omission means to leave out the noun this technique is used by the writer to leave out the nouns which have already been mentioned the writer will use the following words to refer to the noun that has been left out they are one another the other others some those all etc for example a dolphins are easily tamed and can be trained to take food from tour hand some will even pull your hand open to get a tighter hold the word some refers to an amount of dolphins which are mentioned in the passage already the full sentence would be dolphins are easily tamed and can be trained to take food from