In this task, you need to count the number of words in a sentence that contain the given letter

Sentence: 'a train on the side of a road on the edge of the water'. How many words contain the letter 'u' in the sentence.
0

Sentence: 'a mirror above a bathroom sink next to a window'. How many words contain the letter 'v' in the sentence.
1

Sentence: 'a dessert plate that has fruit and cake'. How many words contain the letter 'n' in the sentence.

1