instruction:
In this task, you need to count the number of words in a sentence that contain the given letter
question:
Sentence: 'two elephants in the water in front of a waterfall'. How many words contain the letter 'x' in the sentence.
answer:
0


question:
Sentence: 'there are trains that are on the train track'. How many words contain the letter 'z' in the sentence.
answer:
0


question:
Sentence: 'a truck on the road and people walking nearby'. How many words contain the letter 'p' in the sentence.
answer:

1