instruction:
In this task, you need to count the number of words in a sentence that contain the given letter
question:
Sentence: 'a fresh flower on a table in a piture of water'. How many words contain the letter 'n' in the sentence.
answer:
2


question:
Sentence: 'a stop light that is out on a pole'. How many words contain the letter 'z' in the sentence.
answer:
0


question:
Sentence: 'a person with glasses sitting on the couch'. How many words contain the letter 'r' in the sentence.
answer:

1