In literary criticism, the focus is on the "grammar of literature," or the set patterns of plot and character that recur across time and genre.
The classic example compares Romeo & Juliet and West Side Story:
(boy +LOVE girl)(boy's group -LOVE girl's group)
Associate the following terms and people with Structuralism:
-Ferdinand de Saussure & Semiotics
-sign, signifier, signified, relative difference
-binary oppositions, spatial metaphors, equations
For more information, I recommend Culler's Literary Theory: A Very Short Introduction