instruction:
In this task, you need to count the number of words in a sentence that contain the given letter
question:
Sentence: 'many people are playing a sports video game while standing up'. How many words contain the letter 'l' in the sentence.
answer:
3


question:
Sentence: 'a woman is holding an umbrella and walking across the street'. How many words contain the letter 't' in the sentence.
answer:
2


question:
Sentence: 'a stack of books with a clock on top of them'. How many words contain the letter 'h' in the sentence.
answer:

2