Analyze the relationship between 'Marissa Mayer' and 'Google' within the context of the input sentence.
Options: employer, chairperson, creator, chief executive officer

Enderle said Yahoo (Hanover: YHO.HA - news ) 's decision to lure Marissa Mayer from Google to be CEO has failed to deliver the results many had hoped for and that she has become "an example of what not to do."
employer