instruction:
In this task, you need to count the number of words in a sentence that contain the given letter
question:
Sentence: 'a pizza pie is on a wooden serving tray'. How many words contain the letter 's' in the sentence.
answer:
2


question:
Sentence: 'a keyboard on a table with a toothbrush a book some sunglasses and coffee'. How many words contain the letter 'e' in the sentence.
answer:
5


question:
Sentence: 'a pizza box and a pizza on a rack'. How many words contain the letter 'r' in the sentence.
answer:

1