instruction:
In this task, you need to count the number of words in a sentence that contain the given letter
question:
Sentence: 'the facades of the buildings in the row are all the same'. How many words contain the letter 'f' in the sentence.
answer:
2


question:
Sentence: 'a woman is smiling next to a dog'. How many words contain the letter 'j' in the sentence.
answer:
0


question:
Sentence: 'the back door of a house at night'. How many words contain the letter 'z' in the sentence.
answer:

0