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

[Q]: Sentence: 'a smiling man holds out a card with color swatches'. How many words contain the letter 'i' in the sentence.
[A]: 2


[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: 'cooking dinner on stove in small kitchen at home'. How many words contain the letter 'c' in the sentence.
[A]:
2