instruction:
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.
question:
Sentence: 'a man is serving pizza to a customer'. Count the number of consonants in the given sentence.
answer:
17


question:
Sentence: 'a man on a green field throwing a baseball'. Count the number of vowels in the given sentence.
answer:
14


question:
Sentence: 'two boys wait at the entrance to a hamburg subway station'. Count the number of vowels in the given sentence.
answer:

18