premise: there were not enough seats for all the guests
hypothesis: a specific type of seats is constitution (or Constitution, Old Ironsides), defined as 'a United States 44-gun frigate that was one of the first three naval ships built by the United States; it won brilliant victories over British frigates during the War of 1812 and is without doubt the most famous ship in the history of the United States Navy; it has been rebuilt and is anchored in the Charlestown Navy Yard in Boston' .