In Russia , stocks posted their largest one-day fall since October 2003 , when the authorities arrested Mikhail Khodorkovsky , the chief executive of Yukos , who is now serving a sentence for tax evasion in a Siberian prison .
Mikhail Khodorkovsky /people/person/nationality Russia
IN NNP , NNS VBD PRP$ JJS JJ NN IN NNP CD , WRB DT NNS VBN NNP NNP , DT JJ NN IN NNP , WP VBZ RB VBG DT NN IN NN NN IN DT JJ NN .
Mikhail Khodorkovsky
PERSON
Russia
LOCATION
/people/person/nationality