instruction:
In this task, you need to count the number of words in a sentence that contain the given letter
question:
Sentence: 'bus parked next to a side walk on the road'. How many words contain the letter 'd' in the sentence.
answer:
3


question:
Sentence: 'looking out a window at a tall building with a clock on the face'. How many words contain the letter 'l' in the sentence.
answer:
4


question:
Sentence: 'a patio with benches outside a brick building with stairs leading up to a door'. How many words contain the letter 'w' in the sentence.
answer:

2