Which category does not belong to the three main types of events?

The categorization of events typically revolves around three main types: corporate, private, and charity. Corporate events are those organized by businesses for their stakeholders, including conferences, meetings, and product launches. Private events are personal occasions like weddings, birthdays, and family gatherings. Charity events, while often organized for a good cause, can be classified under corporate or public events depending on their purpose and audience.

Public events, however, don't fall within the main three categories. They generally refer to events open to the general public, which can include festivals, parades, and community gatherings. While public events are significant and can involve elements from the other categories, they are not distinct in the same structural framework as corporate, private, or charity events. Thus, identifying public events as an outlier aligns with the standard classification in event planning.