Velocity token referencing concatenated field

Hi,

I have a single concatenated field that provides a list of events a lead has registered for, separated by semicolons. I'd like to use this field to populate content in an email with information for each unique event the user has registered for, similar to how content is populated in this article. 

When I've used Velocity in the past, it's always been for a field with a single value; 'if country is France, then display price in €' or something similar.  Can a Velocity token be written to use a 'contains' value instead of an 'is'?