instruction:
In this task, you need to count the number of words in a sentence that contain the given letter
question:
Sentence: 'a dog lying down with a blanket on top of it'. How many words contain the letter 'o' in the sentence.
answer:
5


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 truck is very large and has large tires'. How many words contain the letter 'n' in the sentence.
answer:

1