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

[EX Q]: Sentence: 'this is a portion of a painting showing a banana and an orange'. How many words contain the letter 't' in the sentence.
[EX A]: 3

[EX Q]: Sentence: 'the street corner is flooded deep with water'. How many words contain the letter 'f' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'a group of fruit that are hanging from string'. How many words contain the letter 'r' in the sentence.
[EX A]:
5