At book publishing, HarperCollins had a strong quarter with revenues down only 3% to $407 million and segment EBITDA up 9% to $47 million despite significant bricks-and-mortar store closures, which was a far better performance than we had anticipated.
Refer to the input text as context and select the correct relationship between 'was' and 'HarperCollins' from the available options.
Options: founded by, owner of, chief executive officer, publisher