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: 'some people are looking at two giraffes at a zoo'. Count the number of consonants in the given sentence.

Answer: 20


Question: Sentence: 'an large train pulling many cars of green containers'. Count the number of vowels in the given sentence.

Answer: 16


Question: Sentence: 'a couple of people sitting at a table with food and drink'. Count the number of consonants in the given sentence.

Answer:
27