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

Sentence: 'computer and a monitor on a wooden desk next to a laptop'. How many words contain the letter 'm' in the sentence.
2

Sentence: 'an image of a building with a steeple and birds flying overhead reflected in the water'. How many words contain the letter 'u' in the sentence.
1

Sentence: 'a train with graffiti is passing through a station'. How many words contain the letter 'f' in the sentence.

1