Structuralism, simply put, is the arrangment of words to create meaning.
Puns are a fun way to play around with language.
Of course English puns, are the most fun for me.
It could be a matter of word usage to convey an idea.
It could be referencing something specific, and may use an image to link the word to the meaning.
It could also be the use of punctuation to determine the meaning of an entire sentence.