instruction:
In this task, you need to count the number of words in a sentence that contain the given letter
question:
Sentence: 'there is a person awaiting to cross this street'. How many words contain the letter 'a' in the sentence.
answer:
2

question:
Sentence: 'a sign asking for witnesses is posted in front of a destroyed home'. How many words contain the letter 'y' in the sentence.
answer:
1

question:
Sentence: 'a man standing in a kitchen using a blender'. How many words contain the letter 'w' in the sentence.
answer:
0