In fencing, which flexible weapon has a four-sided blade and a blunt point?

What is a fleet of small ships, such as sailing vessels, called? What word, Spanish for "armed force", names a fleet of warships? Fleetwood and Winnebago are best known for making what kind of vehicle? Which NFL team uses a fleur-de-lis as its logo? A flock of which birds famously returns to San Juan Capistrano each spring? A flock of which black birds is called a "murder"? A flock of which birds on the ground is called a "gaggle"? A flop when it debuted in 1904, which Puccini opera set in Nagasaki later became one of the best-loved operas?