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

[EX Q]: Sentence: 'fresh daisies in a rectangular green glass vase'. How many words contain the letter 's' in the sentence.
[EX A]: 4

[EX Q]: Sentence: 'a person standing in the kitchen with an object in hand'. How many words contain the letter 't' in the sentence.
[EX A]: 5

[EX Q]: Sentence: 'people walk among a crowded asian shopping area'. How many words contain the letter 'l' in the sentence.
[EX A]:
2