instruction:
In this task, you need to count the number of words in a sentence that contain the given letter
question:
Sentence: 'a person in the air with a skateboard upside down underneath'. How many words contain the letter 'i' in the sentence.
answer:
4


question:
Sentence: 'man and woman posing for picture before prom'. How many words contain the letter 'c' in the sentence.
answer:
1


question:
Sentence: 'the interior of a bathroom including a toilet and sink'. How many words contain the letter 'n' in the sentence.
answer:

4