instruction:
In this task, you need to count the number of words in a sentence that contain the given letter
question:
Sentence: 'cows crowd up to a barbed wire fence under a tree'. How many words contain the letter 'n' in the sentence.
answer:
2


question:
Sentence: 'a cat is walking on a wooden deck in the snow'. How many words contain the letter 'q' in the sentence.
answer:
0


question:
Sentence: 'there are two children standing in the grass by water'. How many words contain the letter 'f' in the sentence.
answer:

0