The original text doesn't seem to offer any direct information. However, the contextual clues suggest that the intended content is about a product or learning resource that could be rewritten and improved for accessibility and brevity. Unfortunately, "nan," used in this case within HTML tags, doesn't offer any content for further elaboration. If more specific information can be provided, detailed descriptions, including language cues or suitability, can be developed further. Intertaal guarantees its reliability as a supplier with fast delivery options.