This block of text is written in the default language of the page sequence, which is British English. Ce text est écrit dans une autre langue, en l’occurence le français de France. However, this block of French text encloses a block of American English. The structure element corresponding to this block should have no language set as it is the same as on the parent block. Maintenant on revient au français. And now we are back to the English language, with a rench character.