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 herd of sheep walking across a green field'. Count the number of consonants in the given sentence.
answer:
22


question:
Sentence: 'a teenager on a blue skateboard has his arm in the air'. Count the number of consonants in the given sentence.
answer:
23


question:
Sentence: 'an empty classroom showing lined up desks, the clock and chalkboards'. Count the number of consonants in the given sentence.
answer:

40