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

Sentence: 'a silver television a black couch a table and some ceiling fans'. How many words contain the letter 's' in the sentence.
4

Sentence: 'a man walking across a beach carrying a surfboard'. How many words contain the letter 'i' in the sentence.
2

Sentence: 'several tall vases that are lined up in front of a building'. How many words contain the letter 'b' in the sentence.

1