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

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


[Q]: Sentence: 'watchful raptor standing on one foot on a rock pile'. How many words contain the letter 'r' in the sentence.
[A]: 2


[Q]: Sentence: 'a man on a boat pets a dog in a life jacket'. How many words contain the letter 'b' in the sentence.
[A]:
1