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

Sentence: 'a tree by a house has a traffic sign attached to it'. How many words contain the letter 'm' in the sentence.
0

Sentence: 'a person holds a video game remote as another man looks on'. How many words contain the letter 'g' in the sentence.
1

Sentence: 'a big spoon and four bowls of different delicious foods'. How many words contain the letter 'u' in the sentence.

2