Q: In this task, you are given a question and a context passage. You have to answer the question based on the given passage.
Parasites typically invade another organism for nutrients or shelter, this organism is referred to as a?, Context: The Super Bowl 50 Host Committee has vowed to be "the most giving Super Bowl ever", and will dedicate 25 percent of all money it raises for philanthropic causes in the Bay Area. The committee created the 50 fund as its philanthropic initiative and focuses on providing grants to aid with youth development, community investment and sustainable environments.
A:
Host