instruction:
In this task, you need to count the number of words in a sentence that contain the given letter
question:
Sentence: 'a girl is ready to serve the ball on a clay court'. How many words contain the letter 'd' in the sentence.
answer:
1


question:
Sentence: 'some brown and white goats and a man on some grass'. How many words contain the letter 'o' in the sentence.
answer:
5


question:
Sentence: 'luggage under clear umbrellas in the sand at the beach'. How many words contain the letter 'b' in the sentence.
answer:

2