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

Sentence: 'a man and woman holding electronic devices in their hands'. How many words contain the letter 'e' in the sentence.
3

Sentence: 'a couple of zebras are standing in a pin'. How many words contain the letter 'a' in the sentence.
5

Sentence: 'a half ate pizza that is on a box'. How many words contain the letter 'e' in the sentence.

1