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

[Q]: Sentence: 'a bearded man sits on a couch with an electronic device in his hand'. How many words contain the letter 'e' in the sentence.
[A]: 3


[Q]: Sentence: 'martha stewart holding a fluffy siamese cat on her arms'. How many words contain the letter 'a' in the sentence.
[A]: 6


[Q]: Sentence: 'a couple of puppies eating in a food dish'. How many words contain the letter 'f' in the sentence.
[A]:
2