An Associated Press article on Tuesday about the incapacitation of Fidel Castro , who has ruled Cuba since 1959 , referred incorrectly in some copies to the head of state who has served the longest .
Fidel Castro /people/person/nationality Cuba
DT NNP NNP NN IN NNP IN DT NN IN NNP NNP , WP VBZ VBN NNP IN CD , VBN RB IN DT NNS TO DT NN IN NN WP VBZ VBN DT JJS .
Fidel Castro
PERSON
Cuba
LOCATION
/people/person/nationality