Systems, methods, and apparatus, including computer program products, are provided for communications between a client and server, both of which support a markup language, such as the Wireless Markup Language (WML). In one exemplary embodiment, the system, method, and apparatus may include generating, at a server, a WML deck, the WML deck including one or more first cards, the first cards having one or more first parameters; and generating, at a server, one or more second cards, the second cards having one or more second parameters, the second parameters determined to include a single instance of the first parameters to limit any duplicate first parameters.