Voting Rule
When a prompt is sent to a single recipient, the result of the prompt is the return value from that recipient's choice. However, when a prompt is sent to multiple recipients, you must select a vote-counting method to determine the result of the prompt and include a Voting Rule parameter in your event action definition.
From the drop-down list, select the voting rule that is to determine the method for counting and evaluating votes from the recipients of the prompt message. For a list and description of each of the voting rules, see About Voting Rules in Prompts.
When you click Event Actions form, the system "wraps" your selection within a VOTINGRULE( ) parameter, which yields this final syntax:
to return to theVOTINGRULE( selectedRule )