1) The word "elephant" contains three vowels: E, A, and E.

2) The first sound film, "The Jazz Singer," was released in 1927 and marked the transition from silent movies to "talkies."

3) The world's tallest waterfall is Angel Falls in Venezuela, with a height of about 3,212 feet (979 meters).

4) The word "cheese" contains three vowels: E, E, and E.