What is the relationship between 'Jamie Dimon' and 'Chief Executive Officer' in the context of the input sentence.
Options: product/material produced, subsidiary, parent organization, position held

NEW YORK, Sept 18 (Reuters) - JPMorgan Chase & Co's third-quarter markets revenue is running "about the same as everybody else," Chief Executive Officer Jamie Dimon said on Friday after two major competitors had said their revenues were down about 5 percent from a year earlier.
position held