Mark is the kind of guy you worry needs to get other things in his life , '' said David Sze , a partner with Greylock Partners , one of Facebook 's venture capital investors .
David Sze /business/person/company Greylock Partners
NNP VBZ DT NN IN NN PRP VBP NNS TO VB JJ NNS IN PRP$ NN , '' VBD NNP NNP , DT NN IN NNP NNPS , CD IN NNP POS NN NN NNS .
David Sze
PERSON
Greylock Partners
ORGANIZATION
/business/person/company