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 standing together talking '. How many words contain the letter 'b' in the sentence.
answer:
0

question:
Sentence: 'a child on the sand and a boat and some water'. How many words contain the letter 's' in the sentence.
answer:
2

question:
Sentence: 'a skateboard left on the beach in the sand'. How many words contain the letter 'w' in the sentence.
answer:
0