How to Reference Web.xml's Context Param Inside Web.xml Itself?

Question

Assume that there is a context parameter defined inside web deployment descriptor:

  <context-param>
     <param-name>initParam</param-name>
     <param-value>initParamValue</param-value>
  </context-param>

How can I use this parameter inside web.xml itself, e.g. ${initParam} or something?

  <context-param>
     <param-name>otherParam</param-name>
     <param-value>(use initParam here)-otherParamValue</param-value>
  </context-param>