How to access a value from "List of Values" by giving a name?

I have a "List Of Values" defined in my BI Report. It comprises list of label-value pairs.
I have defined a parameter :p_Value for the above "List Of Values" defnition. this parameter is used in datasource sql defnition to filter the query results. I configured a template which has a table that shows all the parameters used for filtering query results. If I give <?$p_Value?> in the template then the parameter value is rendered on it. But I want the "name" of the parameter and not the value. Can anybody tell me how to access name of the parameter which refers to one of value in "List of Value" defnition?

option 1:
Can you get the value from the DB in the report sql ?
You have the code, inside the report query, if you can get the decoded value form that
option2:
create another paramater, LOV and query, and make it as hidden, and use the first :param_1_value in the lov query in the second param and decode the value.
Now , you can refer the :PARAM_2_value in template which will have decoded value.

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