Prime Minister Ariel Sharon 's spokesman said Israel would act against those responsible if the Palestinian Authority did not , but officials did not offer any details .
Ariel Sharon /people/person/nationality Israel
NNP NNP NNP NNP POS NN VBD NNP MD VB IN DT JJ IN DT JJ NNP VBD RB , CC NNS VBD RB VB DT NNS .
Ariel Sharon
PERSON
Israel
LOCATION
/people/person/nationality