In this task, you need to count the number of words in a sentence that contain the given letter
--------
Question: Sentence: 'many different species of sheep in display at a museum'. How many words contain the letter 'p' in the sentence.

Answer: 3


Question: Sentence: 'a airplane is seen at the airport with other airplanes'. How many words contain the letter 'z' in the sentence.

Answer: 0


Question: Sentence: 'a living room with a spiral staircase and fireplace'. How many words contain the letter 'a' in the sentence.

Answer:
6