The publishers that the Justice Department said conspired with Apple include Lagardere SCA's Hachette Book Group Inc, News Corp's HarperCollins Publishers LLC, Penguin Group Inc, CBS Corp's Simon & Schuster Inc and Verlagsgruppe Georg von Holtzbrinck GmbH's Macmillan.
In the context of the input sentence, determine the relationship between 'Hachette' and 'Book'.
Options: owned by, product/material produced, manufacturer, subsidiary