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.

Sentence: 'a bathroom with yellow tiles and a tub mirror and a toilet'. Count the number of vowels in the given sentence.
19

Sentence: 'convention with people standing at table with refreshments'. Count the number of vowels in the given sentence.
17

Sentence: 'many cows are seen roaming all over this field'. Count the number of vowels in the given sentence.

15