instruction:
In this task, you need to count the number of words in a sentence that contain the given letter
question:
Sentence: 'black and white photo of old man riding a motorcycle'. How many words contain the letter 'n' in the sentence.
answer:
3


question:
Sentence: 'a pair of people swimming out to sea on some surfboards'. How many words contain the letter 'j' in the sentence.
answer:
0


question:
Sentence: 'a giraffe crossing a dirt road with a small fallen tree on the side of it'. How many words contain the letter 'b' in the sentence.
answer:

0