Facebook was started online -LRB- facebook.com -RRB- by a Harvard student , Mark Zuckerberg , in 2004 .
Mark Zuckerberg /business/person/company Facebook
Facebook /business/company/founders Mark Zuckerberg
NNP VBD VBN NN -LRB- NN -RRB- IN DT NNP NN , NNP NNP , IN CD .
Mark Zuckerberg
PERSON
Facebook
ORGANIZATION
/business/person/company
Facebook
ORGANIZATION
Mark Zuckerberg
PERSON
/business/company/founders