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

Sentence: 'a large clock mounted in the face of a building'. How many words contain the letter 'e' in the sentence.
4

Sentence: 'a glass vase with clear glass marbles in it and purple flowers coming out of the vase'. How many words contain the letter 'd' in the sentence.
1

Sentence: 'an old television is on the curb in the grass'. How many words contain the letter 'e' in the sentence.

3