[["PBY stands for Patrol Bomber Consolidated. This is how the U.S. Navy labeled their aircraft during WWII.  Y was used to represent the Consolidated Aircraft Co. because C was already assigned to Curtiss.", 45.0], ["PBY stands for patrol bomber, where the \u201cY\u201d stands for  the manufacturer (Consolidated Aircraft Co.).", 11.0], ["Conditional probability is a measure of the probability of an event occurring, given that another event has already occurred. ", 5.0]]
what does p. b. y. stand for
abbreviation