Refer to the input text as context and select the correct relationship between 'Sergio Marchionne' and 'Fiat' from the available options.
Options: currency, employer, parent organization, position held

John Rosevear TMFMarlowe Jul 16, 2015 at 3:25PM Fiat Chrysler CEO Sergio Marchionne spoke to leaders of the United Auto Workers union on Tuesday.
employer