Instructions: In this task, you need to count the number of vowels (letters 'a', 'e', 'i', 'o', 'u') / consonants (all letters other than vowels) in the given sentence.
Input: Sentence: 'a baseball field; young children are the batter and the catcher while the umpire and the pitcher are grown men'. Count the number of consonants in the given sentence.
Output:
57