instruction:
In this task, you need to count the number of words in a sentence that end with the given letter. Answer with numbers and not words.
question:
Sentence: 'a white van sits outside of a white building'. How many words end with the letter 'f' in the sentence.
answer:
1


question:
Sentence: 'a giraffe some dirt some grass and trees'. How many words end with the letter 's' in the sentence.
answer:
2


question:
Sentence: 'a man riding a board on top of waves in the ocean'. How many words end with the letter 's' in the sentence.
answer:

1