double person name?

Hi,
I just ran the text of the bio statement for Vilma Martinez from this page: http://argentina.usembassy.gov/ambassador.html  and it returned a Person Entity relevance of 78% for Vilma Martinez Vilma Martinez (as opposed to just Vilma Martinez) even though that string of words appears nowhere within the article. What would cause this to happen? How can it be corrected?
thanks!