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.

[Q]: Sentence: 'lots of sheep are standing in a field'. Count the number of vowels in the given sentence.
[A]: 12


[Q]: Sentence: 'an large train pulling many cars of green containers'. Count the number of vowels in the given sentence.
[A]: 16


[Q]: Sentence: 'a train not on a track sits in the middle of no where'. Count the number of vowels in the given sentence.
[A]:
16