instruction:
In this task, you need to count the number of words in a sentence that contain the given letter
question:
Sentence: 'people holding a surfboard and walking down the beach'. How many words contain the letter 'n' in the sentence.
answer:
4


question:
Sentence: 'a business man is talking on the phone'. How many words contain the letter 'e' in the sentence.
answer:
3


question:
Sentence: 'a woman in black jacket standing with skis next to a blue and white train'. How many words contain the letter 'k' in the sentence.
answer:

3