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

Sentence: 'a clothing line with teddy bears hung by their ears'. How many words contain the letter 'n' in the sentence.
3

Sentence: 'two angles of a frosted donut with a bite taken out of the side'. How many words contain the letter 'z' in the sentence.
0

Sentence: 'a bed is shown with two lamps and night stands on each side'. How many words contain the letter 'm' in the sentence.

1