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

[Q]: Sentence: 'a bunch of white hyacinths arranged in a vase'. How many words contain the letter 'r' in the sentence.
[A]: 1


[Q]: Sentence: 'a woman standing in the dirt looking up at an elephant'. How many words contain the letter 'b' in the sentence.
[A]: 0


[Q]: Sentence: 'several kites being flown on a wide beach'. How many words contain the letter 'y' in the sentence.
[A]:
0