1) The musical "Hamilton" has won numerous awards, including 11 Tony Awards and the Pulitzer Prize for Drama.

2) Serena Williams, an American tennis player, has won a total of 23 Grand Slam singles titles, making her one of the most successful players in the history of the sport.

3) The tongue of a blue whale is so big that about 50 people could stand on it.

4) The word "island" contains two vowels: I and A.