instruction:
In this task, you need to count the number of words in a sentence that contain the given letter
question:
Sentence: 'a man walking with rolling luggage and many bags'. How many words contain the letter 'g' in the sentence.
answer:
4


question:
Sentence: 'a blue motorcycle parked next to a tree in a forest'. How many words contain the letter 'm' in the sentence.
answer:
1


question:
Sentence: 'a picture of some horses and a person in the street'. How many words contain the letter 'r' in the sentence.
answer:

4