instruction:
In this task, you need to count the number of words in a sentence that contain the given letter
question:
Sentence: 'a long train is coming down some tracks'. How many words contain the letter 'w' in the sentence.
answer:
1


question:
Sentence: 'guys in a living room playing a wii bowling game'. How many words contain the letter 'c' in the sentence.
answer:
0


question:
Sentence: 'a truck for a mobile food vendor has a line of customers'. How many words contain the letter 'v' in the sentence.
answer:

1