The first "%s" contains the name. The second "%s" contains the age in years. E.g. "in this photo Some Person is 22 years old" - the translation of "years" is taken by the plugin from the admin module. The resulting string is displayed as a tooltip.
AndersS, Wednesday 30 January 2013 OK, then the Swedish translation is OK. I was a bit worried there might be a swap of the year and person in the translation, but that is not the case.