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 group of people riding a wave on top of  surfboards'. How many words end with the letter 'f' in the sentence.
answer:
2


question:
Sentence: 'a woman cuts a little girls long blonde hair'. How many words end with the letter 'e' in the sentence.
answer:
2


question:
Sentence: 'a woman walks down a city street talking on her cell phone'. How many words end with the letter 'n' in the sentence.
answer:

3