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: 'an old train next to some empty train tracks'. Count the number of vowels in the given sentence.
answer:
12


question:
Sentence: 'a brown and white dog chewing on a plastic bottle'. Count the number of vowels in the given sentence.
answer:
14


question:
Sentence: 'people are playing tennis while people watch in a stadium that is mostly empty'. Count the number of consonants in the given sentence.
answer:

41