instruction:
In this task, you need to count the number of words in a sentence that contain the given letter
question:
Sentence: 'a group of people on skis on a snowy slope'. How many words contain the letter 'w' in the sentence.
answer:
1


question:
Sentence: 'a large field is next to a river'. How many words contain the letter 'j' in the sentence.
answer:
0


question:
Sentence: 'the catcher poised ready to return the base ball'. How many words contain the letter 'n' in the sentence.
answer:

1